Home / 2,080,160.80-3,114,020.40-1,238,279.20

Finding the Fourth Proportional to 2,080,160.80, 3,114,020.40 and 1,238,279.20

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Solution

The fourth proportional to 2,080,160.80, 3,114,020.40 and 1,238,279.20 is: 1,853,715.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,160.80 : 3,114,020.40 = 1,238,279.20 : x
  2. Step 2: Convert to fraction form
    2,080,160.80/3,114,020.40 = 1,238,279.20/x
  3. Step 3: Cross multiply
    2,080,160.80x = 3,114,020.40 × 1,238,279.20
  4. Step 4: Simplify right side
    2,080,160.80x = 3,856,026,689,695.68
  5. Step 5: Solve for x
    x = 3,856,026,689,695.68/2,080,160.80
  6. Step 6: Final answer
    x = 1,853,715.68

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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.