Home / 725,260.62-1,087,515.47-325,557.21

Finding the Fourth Proportional to 725,260.62, 1,087,515.47 and 325,557.21

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Solution

The fourth proportional to 725,260.62, 1,087,515.47 and 325,557.21 is: 488,167.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,260.62 : 1,087,515.47 = 325,557.21 : x
  2. Step 2: Convert to fraction form
    725,260.62/1,087,515.47 = 325,557.21/x
  3. Step 3: Cross multiply
    725,260.62x = 1,087,515.47 × 325,557.21
  4. Step 4: Simplify right side
    725,260.62x = 354,048,500,617.25
  5. Step 5: Solve for x
    x = 354,048,500,617.25/725,260.62
  6. Step 6: Final answer
    x = 488,167.28

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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.