Home / 434,022.80-649,997.40-266,061.20

Finding the Fourth Proportional to 434,022.80, 649,997.40 and 266,061.20

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Solution

The fourth proportional to 434,022.80, 649,997.40 and 266,061.20 is: 398,456.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,022.80 : 649,997.40 = 266,061.20 : x
  2. Step 2: Convert to fraction form
    434,022.80/649,997.40 = 266,061.20/x
  3. Step 3: Cross multiply
    434,022.80x = 649,997.40 × 266,061.20
  4. Step 4: Simplify right side
    434,022.80x = 172,939,088,240.88
  5. Step 5: Solve for x
    x = 172,939,088,240.88/434,022.80
  6. Step 6: Final answer
    x = 398,456.23

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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.