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Finding the Fourth Proportional to 442,400.73, 660,371.39 and 379,624.26

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Solution

The fourth proportional to 442,400.73, 660,371.39 and 379,624.26 is: 566,664.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,400.73 : 660,371.39 = 379,624.26 : x
  2. Step 2: Convert to fraction form
    442,400.73/660,371.39 = 379,624.26/x
  3. Step 3: Cross multiply
    442,400.73x = 660,371.39 × 379,624.26
  4. Step 4: Simplify right side
    442,400.73x = 250,693,000,253.92
  5. Step 5: Solve for x
    x = 250,693,000,253.92/442,400.73
  6. Step 6: Final answer
    x = 566,664.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.