Home / 1,218,687.68-1,681,806.60-702,156.56

Finding the Fourth Proportional to 1,218,687.68, 1,681,806.60 and 702,156.56

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Solution

The fourth proportional to 1,218,687.68, 1,681,806.60 and 702,156.56 is: 968,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,687.68 : 1,681,806.60 = 702,156.56 : x
  2. Step 2: Convert to fraction form
    1,218,687.68/1,681,806.60 = 702,156.56/x
  3. Step 3: Cross multiply
    1,218,687.68x = 1,681,806.60 × 702,156.56
  4. Step 4: Simplify right side
    1,218,687.68x = 1,180,891,536,841.30
  5. Step 5: Solve for x
    x = 1,180,891,536,841.30/1,218,687.68
  6. Step 6: Final answer
    x = 968,986.19

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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.