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Finding the Fourth Proportional to 528,220.80, 792,331.20 and 482,601.60

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Solution

The fourth proportional to 528,220.80, 792,331.20 and 482,601.60 is: 723,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,220.80 : 792,331.20 = 482,601.60 : x
  2. Step 2: Convert to fraction form
    528,220.80/792,331.20 = 482,601.60/x
  3. Step 3: Cross multiply
    528,220.80x = 792,331.20 × 482,601.60
  4. Step 4: Simplify right side
    528,220.80x = 382,380,304,849.92
  5. Step 5: Solve for x
    x = 382,380,304,849.92/528,220.80
  6. Step 6: Final answer
    x = 723,902.40

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Similar ratio
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1.5x scale

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.