Home / 458,452.06-687,645.62-121,485.25

Finding the Fourth Proportional to 458,452.06, 687,645.62 and 121,485.25

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Solution

The fourth proportional to 458,452.06, 687,645.62 and 121,485.25 is: 182,219.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,452.06 : 687,645.62 = 121,485.25 : x
  2. Step 2: Convert to fraction form
    458,452.06/687,645.62 = 121,485.25/x
  3. Step 3: Cross multiply
    458,452.06x = 687,645.62 × 121,485.25
  4. Step 4: Simplify right side
    458,452.06x = 83,538,798,641.70
  5. Step 5: Solve for x
    x = 83,538,798,641.70/458,452.06
  6. Step 6: Final answer
    x = 182,219.27

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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.