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Finding the Fourth Proportional to 561,287.66, 841,343.42 and 261,521.04

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Solution

The fourth proportional to 561,287.66, 841,343.42 and 261,521.04 is: 392,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,287.66 : 841,343.42 = 261,521.04 : x
  2. Step 2: Convert to fraction form
    561,287.66/841,343.42 = 261,521.04/x
  3. Step 3: Cross multiply
    561,287.66x = 841,343.42 × 261,521.04
  4. Step 4: Simplify right side
    561,287.66x = 220,029,006,195.56
  5. Step 5: Solve for x
    x = 220,029,006,195.56/561,287.66
  6. Step 6: Final answer
    x = 392,007.56

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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.