Home / 1,218,149.25-1,681,021.62-674,284.92

Finding the Fourth Proportional to 1,218,149.25, 1,681,021.62 and 674,284.92

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Solution

The fourth proportional to 1,218,149.25, 1,681,021.62 and 674,284.92 is: 930,499.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,149.25 : 1,681,021.62 = 674,284.92 : x
  2. Step 2: Convert to fraction form
    1,218,149.25/1,681,021.62 = 674,284.92/x
  3. Step 3: Cross multiply
    1,218,149.25x = 1,681,021.62 × 674,284.92
  4. Step 4: Simplify right side
    1,218,149.25x = 1,133,487,528,559.97
  5. Step 5: Solve for x
    x = 1,133,487,528,559.97/1,218,149.25
  6. Step 6: Final answer
    x = 930,499.71

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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.