Home / 708,395.90-1,062,331.32-287,529.62

Finding the Fourth Proportional to 708,395.90, 1,062,331.32 and 287,529.62

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Solution

The fourth proportional to 708,395.90, 1,062,331.32 and 287,529.62 is: 431,187.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,395.90 : 1,062,331.32 = 287,529.62 : x
  2. Step 2: Convert to fraction form
    708,395.90/1,062,331.32 = 287,529.62/x
  3. Step 3: Cross multiply
    708,395.90x = 1,062,331.32 × 287,529.62
  4. Step 4: Simplify right side
    708,395.90x = 305,451,720,753.70
  5. Step 5: Solve for x
    x = 305,451,720,753.70/708,395.90
  6. Step 6: Final answer
    x = 431,187.87

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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.