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Finding the Fourth Proportional to 574,381.80, 861,572.70 and 322,439.40

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Solution

The fourth proportional to 574,381.80, 861,572.70 and 322,439.40 is: 483,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,381.80 : 861,572.70 = 322,439.40 : x
  2. Step 2: Convert to fraction form
    574,381.80/861,572.70 = 322,439.40/x
  3. Step 3: Cross multiply
    574,381.80x = 861,572.70 × 322,439.40
  4. Step 4: Simplify right side
    574,381.80x = 277,804,984,444.38
  5. Step 5: Solve for x
    x = 277,804,984,444.38/574,381.80
  6. Step 6: Final answer
    x = 483,659.10

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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.