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Finding the Fourth Proportional to 655,963.31, 981,723.04 and 403,404.00

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Solution

The fourth proportional to 655,963.31, 981,723.04 and 403,404.00 is: 603,739.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,963.31 : 981,723.04 = 403,404.00 : x
  2. Step 2: Convert to fraction form
    655,963.31/981,723.04 = 403,404.00/x
  3. Step 3: Cross multiply
    655,963.31x = 981,723.04 × 403,404.00
  4. Step 4: Simplify right side
    655,963.31x = 396,030,996,538.19
  5. Step 5: Solve for x
    x = 396,030,996,538.19/655,963.31
  6. Step 6: Final answer
    x = 603,739.55

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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.