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Finding the Fourth Proportional to 534,390.31, 737,438.78 and 292,674.87

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Solution

The fourth proportional to 534,390.31, 737,438.78 and 292,674.87 is: 403,880.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,390.31 : 737,438.78 = 292,674.87 : x
  2. Step 2: Convert to fraction form
    534,390.31/737,438.78 = 292,674.87/x
  3. Step 3: Cross multiply
    534,390.31x = 737,438.78 × 292,674.87
  4. Step 4: Simplify right side
    534,390.31x = 215,829,799,801.15
  5. Step 5: Solve for x
    x = 215,829,799,801.15/534,390.31
  6. Step 6: Final answer
    x = 403,880.45

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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.