Home / 1,328,354.80-1,992,532.20-331,082.80

Finding the Fourth Proportional to 1,328,354.80, 1,992,532.20 and 331,082.80

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Solution

The fourth proportional to 1,328,354.80, 1,992,532.20 and 331,082.80 is: 496,624.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,354.80 : 1,992,532.20 = 331,082.80 : x
  2. Step 2: Convert to fraction form
    1,328,354.80/1,992,532.20 = 331,082.80/x
  3. Step 3: Cross multiply
    1,328,354.80x = 1,992,532.20 × 331,082.80
  4. Step 4: Simplify right side
    1,328,354.80x = 659,693,139,866.16
  5. Step 5: Solve for x
    x = 659,693,139,866.16/1,328,354.80
  6. Step 6: Final answer
    x = 496,624.20

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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.