Home / 998,145.12-1,377,049.68-615,507.60

Finding the Fourth Proportional to 998,145.12, 1,377,049.68 and 615,507.60

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Solution

The fourth proportional to 998,145.12, 1,377,049.68 and 615,507.60 is: 849,159.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,145.12 : 1,377,049.68 = 615,507.60 : x
  2. Step 2: Convert to fraction form
    998,145.12/1,377,049.68 = 615,507.60/x
  3. Step 3: Cross multiply
    998,145.12x = 1,377,049.68 × 615,507.60
  4. Step 4: Simplify right side
    998,145.12x = 847,584,543,617.57
  5. Step 5: Solve for x
    x = 847,584,543,617.57/998,145.12
  6. Step 6: Final answer
    x = 849,159.63

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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.