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Finding the Fourth Proportional to 655,134.56, 981,275.52 and 401,648.48

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Solution

The fourth proportional to 655,134.56, 981,275.52 and 401,648.48 is: 601,598.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,134.56 : 981,275.52 = 401,648.48 : x
  2. Step 2: Convert to fraction form
    655,134.56/981,275.52 = 401,648.48/x
  3. Step 3: Cross multiply
    655,134.56x = 981,275.52 × 401,648.48
  4. Step 4: Simplify right side
    655,134.56x = 394,127,821,069.21
  5. Step 5: Solve for x
    x = 394,127,821,069.21/655,134.56
  6. Step 6: Final answer
    x = 601,598.27

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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.