Home / 1,218,150.75-1,681,023.69-674,286.42

Finding the Fourth Proportional to 1,218,150.75, 1,681,023.69 and 674,286.42

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Solution

The fourth proportional to 1,218,150.75, 1,681,023.69 and 674,286.42 is: 930,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,150.75 : 1,681,023.69 = 674,286.42 : x
  2. Step 2: Convert to fraction form
    1,218,150.75/1,681,023.69 = 674,286.42/x
  3. Step 3: Cross multiply
    1,218,150.75x = 1,681,023.69 × 674,286.42
  4. Step 4: Simplify right side
    1,218,150.75x = 1,133,491,445,865.29
  5. Step 5: Solve for x
    x = 1,133,491,445,865.29/1,218,150.75
  6. Step 6: Final answer
    x = 930,501.78

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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.