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Finding the Fourth Proportional to 531,489.92, 797,429.28 and 247,316

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Solution

The fourth proportional to 531,489.92, 797,429.28 and 247,316 is: 371,064.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,489.92 : 797,429.28 = 247,316 : x
  2. Step 2: Convert to fraction form
    531,489.92/797,429.28 = 247,316/x
  3. Step 3: Cross multiply
    531,489.92x = 797,429.28 × 247,316
  4. Step 4: Simplify right side
    531,489.92x = 197,217,019,812.48
  5. Step 5: Solve for x
    x = 197,217,019,812.48/531,489.92
  6. Step 6: Final answer
    x = 371,064.46

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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.