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Finding the Fourth Proportional to 869,449.80, 1,304,174.70 and 603,729.30

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Solution

The fourth proportional to 869,449.80, 1,304,174.70 and 603,729.30 is: 905,593.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,449.80 : 1,304,174.70 = 603,729.30 : x
  2. Step 2: Convert to fraction form
    869,449.80/1,304,174.70 = 603,729.30/x
  3. Step 3: Cross multiply
    869,449.80x = 1,304,174.70 × 603,729.30
  4. Step 4: Simplify right side
    869,449.80x = 787,368,478,708.71
  5. Step 5: Solve for x
    x = 787,368,478,708.71/869,449.80
  6. Step 6: Final answer
    x = 905,593.95

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Similar ratio
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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.