Home / 725,429.88-1,001,073.24-403,131.78

Finding the Fourth Proportional to 725,429.88, 1,001,073.24 and 403,131.78

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Solution

The fourth proportional to 725,429.88, 1,001,073.24 and 403,131.78 is: 556,310.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,429.88 : 1,001,073.24 = 403,131.78 : x
  2. Step 2: Convert to fraction form
    725,429.88/1,001,073.24 = 403,131.78/x
  3. Step 3: Cross multiply
    725,429.88x = 1,001,073.24 × 403,131.78
  4. Step 4: Simplify right side
    725,429.88x = 403,564,437,151.57
  5. Step 5: Solve for x
    x = 403,564,437,151.57/725,429.88
  6. Step 6: Final answer
    x = 556,310.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.