Home / 917,131.20-1,375,891.20-277,382.40

Finding the Fourth Proportional to 917,131.20, 1,375,891.20 and 277,382.40

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Solution

The fourth proportional to 917,131.20, 1,375,891.20 and 277,382.40 is: 416,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,131.20 : 1,375,891.20 = 277,382.40 : x
  2. Step 2: Convert to fraction form
    917,131.20/1,375,891.20 = 277,382.40/x
  3. Step 3: Cross multiply
    917,131.20x = 1,375,891.20 × 277,382.40
  4. Step 4: Simplify right side
    917,131.20x = 381,648,003,194.88
  5. Step 5: Solve for x
    x = 381,648,003,194.88/917,131.20
  6. Step 6: Final answer
    x = 416,132.40

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1.5x scale

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.