Home / 2,080,780.16-3,121,278.08-660,947.20

Finding the Fourth Proportional to 2,080,780.16, 3,121,278.08 and 660,947.20

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Solution

The fourth proportional to 2,080,780.16, 3,121,278.08 and 660,947.20 is: 991,455.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,780.16 : 3,121,278.08 = 660,947.20 : x
  2. Step 2: Convert to fraction form
    2,080,780.16/3,121,278.08 = 660,947.20/x
  3. Step 3: Cross multiply
    2,080,780.16x = 3,121,278.08 × 660,947.20
  4. Step 4: Simplify right side
    2,080,780.16x = 2,063,000,007,397.38
  5. Step 5: Solve for x
    x = 2,063,000,007,397.38/2,080,780.16
  6. Step 6: Final answer
    x = 991,455.05

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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.