Home / 857,778.60-1,286,279.10-325,122.60

Finding the Fourth Proportional to 857,778.60, 1,286,279.10 and 325,122.60

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Solution

The fourth proportional to 857,778.60, 1,286,279.10 and 325,122.60 is: 487,536.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,778.60 : 1,286,279.10 = 325,122.60 : x
  2. Step 2: Convert to fraction form
    857,778.60/1,286,279.10 = 325,122.60/x
  3. Step 3: Cross multiply
    857,778.60x = 1,286,279.10 × 325,122.60
  4. Step 4: Simplify right side
    857,778.60x = 418,198,405,317.66
  5. Step 5: Solve for x
    x = 418,198,405,317.66/857,778.60
  6. Step 6: Final answer
    x = 487,536.53

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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.