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Finding the Fourth Proportional to 655,351.30, 981,767.46 and 401,892.71

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Solution

The fourth proportional to 655,351.30, 981,767.46 and 401,892.71 is: 602,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,351.30 : 981,767.46 = 401,892.71 : x
  2. Step 2: Convert to fraction form
    655,351.30/981,767.46 = 401,892.71/x
  3. Step 3: Cross multiply
    655,351.30x = 981,767.46 × 401,892.71
  4. Step 4: Simplify right side
    655,351.30x = 394,565,185,089.22
  5. Step 5: Solve for x
    x = 394,565,185,089.22/655,351.30
  6. Step 6: Final answer
    x = 602,066.69

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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.