Home / 1,100,758.38-1,519,028.29-642,139.62

Finding the Fourth Proportional to 1,100,758.38, 1,519,028.29 and 642,139.62

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Solution

The fourth proportional to 1,100,758.38, 1,519,028.29 and 642,139.62 is: 886,142.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,758.38 : 1,519,028.29 = 642,139.62 : x
  2. Step 2: Convert to fraction form
    1,100,758.38/1,519,028.29 = 642,139.62/x
  3. Step 3: Cross multiply
    1,100,758.38x = 1,519,028.29 × 642,139.62
  4. Step 4: Simplify right side
    1,100,758.38x = 975,428,240,404.13
  5. Step 5: Solve for x
    x = 975,428,240,404.13/1,100,758.38
  6. Step 6: Final answer
    x = 886,142.01

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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.