Home / 1,150,122.68-1,587,175.81-666,974.69

Finding the Fourth Proportional to 1,150,122.68, 1,587,175.81 and 666,974.69

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Solution

The fourth proportional to 1,150,122.68, 1,587,175.81 and 666,974.69 is: 920,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150,122.68 : 1,587,175.81 = 666,974.69 : x
  2. Step 2: Convert to fraction form
    1,150,122.68/1,587,175.81 = 666,974.69/x
  3. Step 3: Cross multiply
    1,150,122.68x = 1,587,175.81 × 666,974.69
  4. Step 4: Simplify right side
    1,150,122.68x = 1,058,606,093,850.25
  5. Step 5: Solve for x
    x = 1,058,606,093,850.25/1,150,122.68
  6. Step 6: Final answer
    x = 920,428.85

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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.