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Finding the Fourth Proportional to 531,061.92, 732,856.24 and 289,346.28

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Solution

The fourth proportional to 531,061.92, 732,856.24 and 289,346.28 is: 399,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,061.92 : 732,856.24 = 289,346.28 : x
  2. Step 2: Convert to fraction form
    531,061.92/732,856.24 = 289,346.28/x
  3. Step 3: Cross multiply
    531,061.92x = 732,856.24 × 289,346.28
  4. Step 4: Simplify right side
    531,061.92x = 212,049,226,818.79
  5. Step 5: Solve for x
    x = 212,049,226,818.79/531,061.92
  6. Step 6: Final answer
    x = 399,292.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.