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Finding the Fourth Proportional to 636,650, 878,593.62 and 350,177.60

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Solution

The fourth proportional to 636,650, 878,593.62 and 350,177.60 is: 483,254.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,650 : 878,593.62 = 350,177.60 : x
  2. Step 2: Convert to fraction form
    636,650/878,593.62 = 350,177.60/x
  3. Step 3: Cross multiply
    636,650x = 878,593.62 × 350,177.60
  4. Step 4: Simplify right side
    636,650x = 307,663,805,226.91
  5. Step 5: Solve for x
    x = 307,663,805,226.91/636,650
  6. Step 6: Final answer
    x = 483,254.23

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1.5x scale

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.