Home / 785,425.20-1,083,891.96-445,899.12

Finding the Fourth Proportional to 785,425.20, 1,083,891.96 and 445,899.12

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Solution

The fourth proportional to 785,425.20, 1,083,891.96 and 445,899.12 is: 615,343.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,425.20 : 1,083,891.96 = 445,899.12 : x
  2. Step 2: Convert to fraction form
    785,425.20/1,083,891.96 = 445,899.12/x
  3. Step 3: Cross multiply
    785,425.20x = 1,083,891.96 × 445,899.12
  4. Step 4: Simplify right side
    785,425.20x = 483,306,471,139.08
  5. Step 5: Solve for x
    x = 483,306,471,139.08/785,425.20
  6. Step 6: Final answer
    x = 615,343.73

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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.