Home / 485,279.20-727,919.33-484,578.35

Finding the Fourth Proportional to 485,279.20, 727,919.33 and 484,578.35

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Solution

The fourth proportional to 485,279.20, 727,919.33 and 484,578.35 is: 726,868.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,279.20 : 727,919.33 = 484,578.35 : x
  2. Step 2: Convert to fraction form
    485,279.20/727,919.33 = 484,578.35/x
  3. Step 3: Cross multiply
    485,279.20x = 727,919.33 × 484,578.35
  4. Step 4: Simplify right side
    485,279.20x = 352,733,944,531.72
  5. Step 5: Solve for x
    x = 352,733,944,531.72/485,279.20
  6. Step 6: Final answer
    x = 726,868.05

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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.