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Finding the Fourth Proportional to 452,802.60, 679,203.90 and 418,588.20

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Solution

The fourth proportional to 452,802.60, 679,203.90 and 418,588.20 is: 627,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,802.60 : 679,203.90 = 418,588.20 : x
  2. Step 2: Convert to fraction form
    452,802.60/679,203.90 = 418,588.20/x
  3. Step 3: Cross multiply
    452,802.60x = 679,203.90 × 418,588.20
  4. Step 4: Simplify right side
    452,802.60x = 284,306,737,933.98
  5. Step 5: Solve for x
    x = 284,306,737,933.98/452,802.60
  6. Step 6: Final answer
    x = 627,882.30

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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.