Home / 609,414.30-914,121.45-458,839.35

Finding the Fourth Proportional to 609,414.30, 914,121.45 and 458,839.35

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Solution

The fourth proportional to 609,414.30, 914,121.45 and 458,839.35 is: 688,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,414.30 : 914,121.45 = 458,839.35 : x
  2. Step 2: Convert to fraction form
    609,414.30/914,121.45 = 458,839.35/x
  3. Step 3: Cross multiply
    609,414.30x = 914,121.45 × 458,839.35
  4. Step 4: Simplify right side
    609,414.30x = 419,434,891,939.06
  5. Step 5: Solve for x
    x = 419,434,891,939.06/609,414.30
  6. Step 6: Final answer
    x = 688,259.03

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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.