Home / 661,149.20-912,382.32-374,723.44

Finding the Fourth Proportional to 661,149.20, 912,382.32 and 374,723.44

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Solution

The fourth proportional to 661,149.20, 912,382.32 and 374,723.44 is: 517,116.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,149.20 : 912,382.32 = 374,723.44 : x
  2. Step 2: Convert to fraction form
    661,149.20/912,382.32 = 374,723.44/x
  3. Step 3: Cross multiply
    661,149.20x = 912,382.32 × 374,723.44
  4. Step 4: Simplify right side
    661,149.20x = 341,891,041,545.58
  5. Step 5: Solve for x
    x = 341,891,041,545.58/661,149.20
  6. Step 6: Final answer
    x = 517,116.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.