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Finding the Fourth Proportional to 601,436.80, 902,155.20 and 512,863.30

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Solution

The fourth proportional to 601,436.80, 902,155.20 and 512,863.30 is: 769,294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,436.80 : 902,155.20 = 512,863.30 : x
  2. Step 2: Convert to fraction form
    601,436.80/902,155.20 = 512,863.30/x
  3. Step 3: Cross multiply
    601,436.80x = 902,155.20 × 512,863.30
  4. Step 4: Simplify right side
    601,436.80x = 462,682,292,984.16
  5. Step 5: Solve for x
    x = 462,682,292,984.16/601,436.80
  6. Step 6: Final answer
    x = 769,294.95

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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.