Home / 1,328,088.30-1,992,132.45-330,816.30

Finding the Fourth Proportional to 1,328,088.30, 1,992,132.45 and 330,816.30

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Solution

The fourth proportional to 1,328,088.30, 1,992,132.45 and 330,816.30 is: 496,224.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,088.30 : 1,992,132.45 = 330,816.30 : x
  2. Step 2: Convert to fraction form
    1,328,088.30/1,992,132.45 = 330,816.30/x
  3. Step 3: Cross multiply
    1,328,088.30x = 1,992,132.45 × 330,816.30
  4. Step 4: Simplify right side
    1,328,088.30x = 659,029,886,218.94
  5. Step 5: Solve for x
    x = 659,029,886,218.94/1,328,088.30
  6. Step 6: Final answer
    x = 496,224.45

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Half scale
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Double scale
Find fourth proportional to 1,328,089.30, 1,992,133.95 and 330,817.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.