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Finding the Fourth Proportional to 465,562.60, 642,560.10 and 274,564.84

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Solution

The fourth proportional to 465,562.60, 642,560.10 and 274,564.84 is: 378,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,562.60 : 642,560.10 = 274,564.84 : x
  2. Step 2: Convert to fraction form
    465,562.60/642,560.10 = 274,564.84/x
  3. Step 3: Cross multiply
    465,562.60x = 642,560.10 × 274,564.84
  4. Step 4: Simplify right side
    465,562.60x = 176,424,411,046.88
  5. Step 5: Solve for x
    x = 176,424,411,046.88/465,562.60
  6. Step 6: Final answer
    x = 378,948.85

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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.