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Finding the Fourth Proportional to 451,241.60, 676,862.40 and 412,534.40

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Solution

The fourth proportional to 451,241.60, 676,862.40 and 412,534.40 is: 618,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,241.60 : 676,862.40 = 412,534.40 : x
  2. Step 2: Convert to fraction form
    451,241.60/676,862.40 = 412,534.40/x
  3. Step 3: Cross multiply
    451,241.60x = 676,862.40 × 412,534.40
  4. Step 4: Simplify right side
    451,241.60x = 279,229,024,066.56
  5. Step 5: Solve for x
    x = 279,229,024,066.56/451,241.60
  6. Step 6: Final answer
    x = 618,801.60

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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.