Home / 998,049.12-1,376,917.20-615,411.60

Finding the Fourth Proportional to 998,049.12, 1,376,917.20 and 615,411.60

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Solution

The fourth proportional to 998,049.12, 1,376,917.20 and 615,411.60 is: 849,027.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,049.12 : 1,376,917.20 = 615,411.60 : x
  2. Step 2: Convert to fraction form
    998,049.12/1,376,917.20 = 615,411.60/x
  3. Step 3: Cross multiply
    998,049.12x = 1,376,917.20 × 615,411.60
  4. Step 4: Simplify right side
    998,049.12x = 847,370,817,119.52
  5. Step 5: Solve for x
    x = 847,370,817,119.52/998,049.12
  6. Step 6: Final answer
    x = 849,027.17

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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.