Home / 2,236,867.40-3,086,876.84-1,218,272.15

Finding the Fourth Proportional to 2,236,867.40, 3,086,876.84 and 1,218,272.15

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Solution

The fourth proportional to 2,236,867.40, 3,086,876.84 and 1,218,272.15 is: 1,681,215.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236,867.40 : 3,086,876.84 = 1,218,272.15 : x
  2. Step 2: Convert to fraction form
    2,236,867.40/3,086,876.84 = 1,218,272.15/x
  3. Step 3: Cross multiply
    2,236,867.40x = 3,086,876.84 × 1,218,272.15
  4. Step 4: Simplify right side
    2,236,867.40x = 3,760,656,063,126.26
  5. Step 5: Solve for x
    x = 3,760,656,063,126.26/2,236,867.40
  6. Step 6: Final answer
    x = 1,681,215.47

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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.