Home / 852,574.90-1,278,716.96-283,891.49

Finding the Fourth Proportional to 852,574.90, 1,278,716.96 and 283,891.49

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Solution

The fourth proportional to 852,574.90, 1,278,716.96 and 283,891.49 is: 425,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,574.90 : 1,278,716.96 = 283,891.49 : x
  2. Step 2: Convert to fraction form
    852,574.90/1,278,716.96 = 283,891.49/x
  3. Step 3: Cross multiply
    852,574.90x = 1,278,716.96 × 283,891.49
  4. Step 4: Simplify right side
    852,574.90x = 363,016,863,062.67
  5. Step 5: Solve for x
    x = 363,016,863,062.67/852,574.90
  6. Step 6: Final answer
    x = 425,788.83

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Double scale
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Similar ratio
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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.