Home / 632,001.20-948,001.80-408,052.40

Finding the Fourth Proportional to 632,001.20, 948,001.80 and 408,052.40

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Solution

The fourth proportional to 632,001.20, 948,001.80 and 408,052.40 is: 612,078.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,001.20 : 948,001.80 = 408,052.40 : x
  2. Step 2: Convert to fraction form
    632,001.20/948,001.80 = 408,052.40/x
  3. Step 3: Cross multiply
    632,001.20x = 948,001.80 × 408,052.40
  4. Step 4: Simplify right side
    632,001.20x = 386,834,409,694.32
  5. Step 5: Solve for x
    x = 386,834,409,694.32/632,001.20
  6. Step 6: Final answer
    x = 612,078.60

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Double scale
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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.