Home / 1,218,656.82-1,681,764.10-674,791.56

Finding the Fourth Proportional to 1,218,656.82, 1,681,764.10 and 674,791.56

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Solution

The fourth proportional to 1,218,656.82, 1,681,764.10 and 674,791.56 is: 931,222.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,656.82 : 1,681,764.10 = 674,791.56 : x
  2. Step 2: Convert to fraction form
    1,218,656.82/1,681,764.10 = 674,791.56/x
  3. Step 3: Cross multiply
    1,218,656.82x = 1,681,764.10 × 674,791.56
  4. Step 4: Simplify right side
    1,218,656.82x = 1,134,840,220,591.00
  5. Step 5: Solve for x
    x = 1,134,840,220,591.00/1,218,656.82
  6. Step 6: Final answer
    x = 931,222.15

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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.