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Finding the Fourth Proportional to 625,487.04, 863,150.88 and 370,687.20

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Solution

The fourth proportional to 625,487.04, 863,150.88 and 370,687.20 is: 511,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,487.04 : 863,150.88 = 370,687.20 : x
  2. Step 2: Convert to fraction form
    625,487.04/863,150.88 = 370,687.20/x
  3. Step 3: Cross multiply
    625,487.04x = 863,150.88 × 370,687.20
  4. Step 4: Simplify right side
    625,487.04x = 319,958,982,884.74
  5. Step 5: Solve for x
    x = 319,958,982,884.74/625,487.04
  6. Step 6: Final answer
    x = 511,535.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.