Home / 2,158,481.17-2,978,686.20-1,191,590.92

Finding the Fourth Proportional to 2,158,481.17, 2,978,686.20 and 1,191,590.92

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Solution

The fourth proportional to 2,158,481.17, 2,978,686.20 and 1,191,590.92 is: 1,644,385.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,481.17 : 2,978,686.20 = 1,191,590.92 : x
  2. Step 2: Convert to fraction form
    2,158,481.17/2,978,686.20 = 1,191,590.92/x
  3. Step 3: Cross multiply
    2,158,481.17x = 2,978,686.20 × 1,191,590.92
  4. Step 4: Simplify right side
    2,158,481.17x = 3,549,375,429,449.30
  5. Step 5: Solve for x
    x = 3,549,375,429,449.30/2,158,481.17
  6. Step 6: Final answer
    x = 1,644,385.64

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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.