Home / 423,760.20-635,057.10-281,200.20

Finding the Fourth Proportional to 423,760.20, 635,057.10 and 281,200.20

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Solution

The fourth proportional to 423,760.20, 635,057.10 and 281,200.20 is: 421,413.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,760.20 : 635,057.10 = 281,200.20 : x
  2. Step 2: Convert to fraction form
    423,760.20/635,057.10 = 281,200.20/x
  3. Step 3: Cross multiply
    423,760.20x = 635,057.10 × 281,200.20
  4. Step 4: Simplify right side
    423,760.20x = 178,578,183,531.42
  5. Step 5: Solve for x
    x = 178,578,183,531.42/423,760.20
  6. Step 6: Final answer
    x = 421,413.30

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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.