Home / 1,180.46-1,629.06-656.66

Finding the Fourth Proportional to 1,180.46, 1,629.06 and 656.66

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Solution

The fourth proportional to 1,180.46, 1,629.06 and 656.66 is: 906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180.46 : 1,629.06 = 656.66 : x
  2. Step 2: Convert to fraction form
    1,180.46/1,629.06 = 656.66/x
  3. Step 3: Cross multiply
    1,180.46x = 1,629.06 × 656.66
  4. Step 4: Simplify right side
    1,180.46x = 1,069,738.54
  5. Step 5: Solve for x
    x = 1,069,738.54/1,180.46
  6. Step 6: Final answer
    x = 906.20

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1.5x scale

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.