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Finding the Fourth Proportional to 655,882.66, 981,601.80 and 403,323.13

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Solution

The fourth proportional to 655,882.66, 981,601.80 and 403,323.13 is: 603,618.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,882.66 : 981,601.80 = 403,323.13 : x
  2. Step 2: Convert to fraction form
    655,882.66/981,601.80 = 403,323.13/x
  3. Step 3: Cross multiply
    655,882.66x = 981,601.80 × 403,323.13
  4. Step 4: Simplify right side
    655,882.66x = 395,902,710,389.63
  5. Step 5: Solve for x
    x = 395,902,710,389.63/655,882.66
  6. Step 6: Final answer
    x = 603,618.20

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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.