Home / 437,609.20-656,413.80-408,084.70

Finding the Fourth Proportional to 437,609.20, 656,413.80 and 408,084.70

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Solution

The fourth proportional to 437,609.20, 656,413.80 and 408,084.70 is: 612,127.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,609.20 : 656,413.80 = 408,084.70 : x
  2. Step 2: Convert to fraction form
    437,609.20/656,413.80 = 408,084.70/x
  3. Step 3: Cross multiply
    437,609.20x = 656,413.80 × 408,084.70
  4. Step 4: Simplify right side
    437,609.20x = 267,872,428,648.86
  5. Step 5: Solve for x
    x = 267,872,428,648.86/437,609.20
  6. Step 6: Final answer
    x = 612,127.05

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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.