Home / 752,616.82-1,129,401.16-393,435.90

Finding the Fourth Proportional to 752,616.82, 1,129,401.16 and 393,435.90

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Solution

The fourth proportional to 752,616.82, 1,129,401.16 and 393,435.90 is: 590,402.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,616.82 : 1,129,401.16 = 393,435.90 : x
  2. Step 2: Convert to fraction form
    752,616.82/1,129,401.16 = 393,435.90/x
  3. Step 3: Cross multiply
    752,616.82x = 1,129,401.16 × 393,435.90
  4. Step 4: Simplify right side
    752,616.82x = 444,346,962,979.68
  5. Step 5: Solve for x
    x = 444,346,962,979.68/752,616.82
  6. Step 6: Final answer
    x = 590,402.65

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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.