Home / 725,201.28-1,087,428.06-325,499.40

Finding the Fourth Proportional to 725,201.28, 1,087,428.06 and 325,499.40

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Solution

The fourth proportional to 725,201.28, 1,087,428.06 and 325,499.40 is: 488,081.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,201.28 : 1,087,428.06 = 325,499.40 : x
  2. Step 2: Convert to fraction form
    725,201.28/1,087,428.06 = 325,499.40/x
  3. Step 3: Cross multiply
    725,201.28x = 1,087,428.06 × 325,499.40
  4. Step 4: Simplify right side
    725,201.28x = 353,957,181,073.16
  5. Step 5: Solve for x
    x = 353,957,181,073.16/725,201.28
  6. Step 6: Final answer
    x = 488,081.30

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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.