Home / 865,729.20-1,298,593.80-546,864.60

Finding the Fourth Proportional to 865,729.20, 1,298,593.80 and 546,864.60

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Solution

The fourth proportional to 865,729.20, 1,298,593.80 and 546,864.60 is: 820,296.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,729.20 : 1,298,593.80 = 546,864.60 : x
  2. Step 2: Convert to fraction form
    865,729.20/1,298,593.80 = 546,864.60/x
  3. Step 3: Cross multiply
    865,729.20x = 1,298,593.80 × 546,864.60
  4. Step 4: Simplify right side
    865,729.20x = 710,154,978,999.48
  5. Step 5: Solve for x
    x = 710,154,978,999.48/865,729.20
  6. Step 6: Final answer
    x = 820,296.90

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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.