Home / 2,261,437.92-3,120,814.76-1,228,966.20

Finding the Fourth Proportional to 2,261,437.92, 3,120,814.76 and 1,228,966.20

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Solution

The fourth proportional to 2,261,437.92, 3,120,814.76 and 1,228,966.20 is: 1,695,989.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,261,437.92 : 3,120,814.76 = 1,228,966.20 : x
  2. Step 2: Convert to fraction form
    2,261,437.92/3,120,814.76 = 1,228,966.20/x
  3. Step 3: Cross multiply
    2,261,437.92x = 3,120,814.76 × 1,228,966.20
  4. Step 4: Simplify right side
    2,261,437.92x = 3,835,375,850,356.28
  5. Step 5: Solve for x
    x = 3,835,375,850,356.28/2,261,437.92
  6. Step 6: Final answer
    x = 1,695,989.89

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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.