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Finding the Fourth Proportional to 487,269.80, 730,904.70 and 443,724.20

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Solution

The fourth proportional to 487,269.80, 730,904.70 and 443,724.20 is: 665,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,269.80 : 730,904.70 = 443,724.20 : x
  2. Step 2: Convert to fraction form
    487,269.80/730,904.70 = 443,724.20/x
  3. Step 3: Cross multiply
    487,269.80x = 730,904.70 × 443,724.20
  4. Step 4: Simplify right side
    487,269.80x = 324,320,103,283.74
  5. Step 5: Solve for x
    x = 324,320,103,283.74/487,269.80
  6. Step 6: Final answer
    x = 665,586.30

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Similar ratio
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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.