Home / 458,469.98-687,629.48-121,531.58

Finding the Fourth Proportional to 458,469.98, 687,629.48 and 121,531.58

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Solution

The fourth proportional to 458,469.98, 687,629.48 and 121,531.58 is: 182,277.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,469.98 : 687,629.48 = 121,531.58 : x
  2. Step 2: Convert to fraction form
    458,469.98/687,629.48 = 121,531.58/x
  3. Step 3: Cross multiply
    458,469.98x = 687,629.48 × 121,531.58
  4. Step 4: Simplify right side
    458,469.98x = 83,568,697,158.98
  5. Step 5: Solve for x
    x = 83,568,697,158.98/458,469.98
  6. Step 6: Final answer
    x = 182,277.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.