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Finding the Fourth Proportional to 531,044.16, 732,348.64 and 387,576.96

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Solution

The fourth proportional to 531,044.16, 732,348.64 and 387,576.96 is: 534,496.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,044.16 : 732,348.64 = 387,576.96 : x
  2. Step 2: Convert to fraction form
    531,044.16/732,348.64 = 387,576.96/x
  3. Step 3: Cross multiply
    531,044.16x = 732,348.64 × 387,576.96
  4. Step 4: Simplify right side
    531,044.16x = 283,841,459,551.33
  5. Step 5: Solve for x
    x = 283,841,459,551.33/531,044.16
  6. Step 6: Final answer
    x = 534,496.90

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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.