Home / 1,150,121.68-1,587,174.43-666,973.69

Finding the Fourth Proportional to 1,150,121.68, 1,587,174.43 and 666,973.69

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Solution

The fourth proportional to 1,150,121.68, 1,587,174.43 and 666,973.69 is: 920,427.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150,121.68 : 1,587,174.43 = 666,973.69 : x
  2. Step 2: Convert to fraction form
    1,150,121.68/1,587,174.43 = 666,973.69/x
  3. Step 3: Cross multiply
    1,150,121.68x = 1,587,174.43 × 666,973.69
  4. Step 4: Simplify right side
    1,150,121.68x = 1,058,603,586,250.75
  5. Step 5: Solve for x
    x = 1,058,603,586,250.75/1,150,121.68
  6. Step 6: Final answer
    x = 920,427.47

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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.