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Finding the Fourth Proportional to 553,539.31, 763,892.72 and 327,205.87

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Solution

The fourth proportional to 553,539.31, 763,892.72 and 327,205.87 is: 451,549.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,539.31 : 763,892.72 = 327,205.87 : x
  2. Step 2: Convert to fraction form
    553,539.31/763,892.72 = 327,205.87/x
  3. Step 3: Cross multiply
    553,539.31x = 763,892.72 × 327,205.87
  4. Step 4: Simplify right side
    553,539.31x = 249,950,182,034.27
  5. Step 5: Solve for x
    x = 249,950,182,034.27/553,539.31
  6. Step 6: Final answer
    x = 451,549.11

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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.