Home / 998,101.12-1,376,988.96-615,463.60

Finding the Fourth Proportional to 998,101.12, 1,376,988.96 and 615,463.60

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Solution

The fourth proportional to 998,101.12, 1,376,988.96 and 615,463.60 is: 849,098.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,101.12 : 1,376,988.96 = 615,463.60 : x
  2. Step 2: Convert to fraction form
    998,101.12/1,376,988.96 = 615,463.60/x
  3. Step 3: Cross multiply
    998,101.12x = 1,376,988.96 × 615,463.60
  4. Step 4: Simplify right side
    998,101.12x = 847,486,582,481.86
  5. Step 5: Solve for x
    x = 847,486,582,481.86/998,101.12
  6. Step 6: Final answer
    x = 849,098.92

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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.