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Finding the Fourth Proportional to 439,006.32, 657,822.60 and 339,411.96

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Solution

The fourth proportional to 439,006.32, 657,822.60 and 339,411.96 is: 508,586.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,006.32 : 657,822.60 = 339,411.96 : x
  2. Step 2: Convert to fraction form
    439,006.32/657,822.60 = 339,411.96/x
  3. Step 3: Cross multiply
    439,006.32x = 657,822.60 × 339,411.96
  4. Step 4: Simplify right side
    439,006.32x = 223,272,857,998.30
  5. Step 5: Solve for x
    x = 223,272,857,998.30/439,006.32
  6. Step 6: Final answer
    x = 508,586.89

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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.