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Finding the Fourth Proportional to 437,453.70, 656,180.55 and 407,929.20

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Solution

The fourth proportional to 437,453.70, 656,180.55 and 407,929.20 is: 611,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,453.70 : 656,180.55 = 407,929.20 : x
  2. Step 2: Convert to fraction form
    437,453.70/656,180.55 = 407,929.20/x
  3. Step 3: Cross multiply
    437,453.70x = 656,180.55 × 407,929.20
  4. Step 4: Simplify right side
    437,453.70x = 267,675,206,817.06
  5. Step 5: Solve for x
    x = 267,675,206,817.06/437,453.70
  6. Step 6: Final answer
    x = 611,893.80

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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.