Home / 865,729.20-1,298,593.80-802,743.60

Finding the Fourth Proportional to 865,729.20, 1,298,593.80 and 802,743.60

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Solution

The fourth proportional to 865,729.20, 1,298,593.80 and 802,743.60 is: 1,204,115.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,729.20 : 1,298,593.80 = 802,743.60 : x
  2. Step 2: Convert to fraction form
    865,729.20/1,298,593.80 = 802,743.60/x
  3. Step 3: Cross multiply
    865,729.20x = 1,298,593.80 × 802,743.60
  4. Step 4: Simplify right side
    865,729.20x = 1,042,437,861,949.68
  5. Step 5: Solve for x
    x = 1,042,437,861,949.68/865,729.20
  6. Step 6: Final answer
    x = 1,204,115.40

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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.