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Finding the Fourth Proportional to 454,001.60, 681,002.40 and 386,350.40

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Solution

The fourth proportional to 454,001.60, 681,002.40 and 386,350.40 is: 579,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,001.60 : 681,002.40 = 386,350.40 : x
  2. Step 2: Convert to fraction form
    454,001.60/681,002.40 = 386,350.40/x
  3. Step 3: Cross multiply
    454,001.60x = 681,002.40 × 386,350.40
  4. Step 4: Simplify right side
    454,001.60x = 263,105,549,640.96
  5. Step 5: Solve for x
    x = 263,105,549,640.96/454,001.60
  6. Step 6: Final answer
    x = 579,525.60

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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.