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Finding the Fourth Proportional to 486,001.70, 729,002.55 and 365,279.30

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Solution

The fourth proportional to 486,001.70, 729,002.55 and 365,279.30 is: 547,918.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,001.70 : 729,002.55 = 365,279.30 : x
  2. Step 2: Convert to fraction form
    486,001.70/729,002.55 = 365,279.30/x
  3. Step 3: Cross multiply
    486,001.70x = 729,002.55 × 365,279.30
  4. Step 4: Simplify right side
    486,001.70x = 266,289,541,162.22
  5. Step 5: Solve for x
    x = 266,289,541,162.22/486,001.70
  6. Step 6: Final answer
    x = 547,918.95

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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.