Home / 1,328,126.40-1,992,189.60-330,854.40

Finding the Fourth Proportional to 1,328,126.40, 1,992,189.60 and 330,854.40

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Solution

The fourth proportional to 1,328,126.40, 1,992,189.60 and 330,854.40 is: 496,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,126.40 : 1,992,189.60 = 330,854.40 : x
  2. Step 2: Convert to fraction form
    1,328,126.40/1,992,189.60 = 330,854.40/x
  3. Step 3: Cross multiply
    1,328,126.40x = 1,992,189.60 × 330,854.40
  4. Step 4: Simplify right side
    1,328,126.40x = 659,124,694,794.24
  5. Step 5: Solve for x
    x = 659,124,694,794.24/1,328,126.40
  6. Step 6: Final answer
    x = 496,281.60

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Double scale
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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.