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Finding the Fourth Proportional to 486,099.80, 729,149.70 and 368,001.80

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Solution

The fourth proportional to 486,099.80, 729,149.70 and 368,001.80 is: 552,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,099.80 : 729,149.70 = 368,001.80 : x
  2. Step 2: Convert to fraction form
    486,099.80/729,149.70 = 368,001.80/x
  3. Step 3: Cross multiply
    486,099.80x = 729,149.70 × 368,001.80
  4. Step 4: Simplify right side
    486,099.80x = 268,328,402,069.46
  5. Step 5: Solve for x
    x = 268,328,402,069.46/486,099.80
  6. Step 6: Final answer
    x = 552,002.70

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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.