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Finding the Fourth Proportional to 635,895.60, 953,551.80 and 280,726.80

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Solution

The fourth proportional to 635,895.60, 953,551.80 and 280,726.80 is: 420,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,895.60 : 953,551.80 = 280,726.80 : x
  2. Step 2: Convert to fraction form
    635,895.60/953,551.80 = 280,726.80/x
  3. Step 3: Cross multiply
    635,895.60x = 953,551.80 × 280,726.80
  4. Step 4: Simplify right side
    635,895.60x = 267,687,545,448.24
  5. Step 5: Solve for x
    x = 267,687,545,448.24/635,895.60
  6. Step 6: Final answer
    x = 420,961.47

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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.