Home / 1,231,998.12-1,700,139.33-688,141.53

Finding the Fourth Proportional to 1,231,998.12, 1,700,139.33 and 688,141.53

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Solution

The fourth proportional to 1,231,998.12, 1,700,139.33 and 688,141.53 is: 949,625.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,998.12 : 1,700,139.33 = 688,141.53 : x
  2. Step 2: Convert to fraction form
    1,231,998.12/1,700,139.33 = 688,141.53/x
  3. Step 3: Cross multiply
    1,231,998.12x = 1,700,139.33 × 688,141.53
  4. Step 4: Simplify right side
    1,231,998.12x = 1,169,936,479,759.38
  5. Step 5: Solve for x
    x = 1,169,936,479,759.38/1,231,998.12
  6. Step 6: Final answer
    x = 949,625.22

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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.