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Finding the Fourth Proportional to 571,489.92, 855,834.96 and 402,595.20

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Solution

The fourth proportional to 571,489.92, 855,834.96 and 402,595.20 is: 602,906.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,489.92 : 855,834.96 = 402,595.20 : x
  2. Step 2: Convert to fraction form
    571,489.92/855,834.96 = 402,595.20/x
  3. Step 3: Cross multiply
    571,489.92x = 855,834.96 × 402,595.20
  4. Step 4: Simplify right side
    571,489.92x = 344,555,046,888.19
  5. Step 5: Solve for x
    x = 344,555,046,888.19/571,489.92
  6. Step 6: Final answer
    x = 602,906.60

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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.