Home / 725,454.68-1,001,129.52-403,163.78

Finding the Fourth Proportional to 725,454.68, 1,001,129.52 and 403,163.78

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Solution

The fourth proportional to 725,454.68, 1,001,129.52 and 403,163.78 is: 556,367.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,454.68 : 1,001,129.52 = 403,163.78 : x
  2. Step 2: Convert to fraction form
    725,454.68/1,001,129.52 = 403,163.78/x
  3. Step 3: Cross multiply
    725,454.68x = 1,001,129.52 × 403,163.78
  4. Step 4: Simplify right side
    725,454.68x = 403,619,161,552.79
  5. Step 5: Solve for x
    x = 403,619,161,552.79/725,454.68
  6. Step 6: Final answer
    x = 556,367.16

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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.