Home / 765,550.24-1,056,390.60-443,282.20

Finding the Fourth Proportional to 765,550.24, 1,056,390.60 and 443,282.20

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Solution

The fourth proportional to 765,550.24, 1,056,390.60 and 443,282.20 is: 611,689.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,550.24 : 1,056,390.60 = 443,282.20 : x
  2. Step 2: Convert to fraction form
    765,550.24/1,056,390.60 = 443,282.20/x
  3. Step 3: Cross multiply
    765,550.24x = 1,056,390.60 × 443,282.20
  4. Step 4: Simplify right side
    765,550.24x = 468,279,149,227.32
  5. Step 5: Solve for x
    x = 468,279,149,227.32/765,550.24
  6. Step 6: Final answer
    x = 611,689.64

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1.5x scale

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.