Home / 486,629.28-666,670.97-468,435.30

Finding the Fourth Proportional to 486,629.28, 666,670.97 and 468,435.30

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Solution

The fourth proportional to 486,629.28, 666,670.97 and 468,435.30 is: 641,745.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,629.28 : 666,670.97 = 468,435.30 : x
  2. Step 2: Convert to fraction form
    486,629.28/666,670.97 = 468,435.30/x
  3. Step 3: Cross multiply
    486,629.28x = 666,670.97 × 468,435.30
  4. Step 4: Simplify right side
    486,629.28x = 312,292,215,833.24
  5. Step 5: Solve for x
    x = 312,292,215,833.24/486,629.28
  6. Step 6: Final answer
    x = 641,745.63

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.