Home / 725,641.20-1,087,943.40-325,954.80

Finding the Fourth Proportional to 725,641.20, 1,087,943.40 and 325,954.80

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Solution

The fourth proportional to 725,641.20, 1,087,943.40 and 325,954.80 is: 488,699.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,641.20 : 1,087,943.40 = 325,954.80 : x
  2. Step 2: Convert to fraction form
    725,641.20/1,087,943.40 = 325,954.80/x
  3. Step 3: Cross multiply
    725,641.20x = 1,087,943.40 × 325,954.80
  4. Step 4: Simplify right side
    725,641.20x = 354,620,373,358.32
  5. Step 5: Solve for x
    x = 354,620,373,358.32/725,641.20
  6. Step 6: Final answer
    x = 488,699.34

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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.