Home / 547,987.20-821,969.28-252,499.20

Finding the Fourth Proportional to 547,987.20, 821,969.28 and 252,499.20

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Solution

The fourth proportional to 547,987.20, 821,969.28 and 252,499.20 is: 378,743.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,987.20 : 821,969.28 = 252,499.20 : x
  2. Step 2: Convert to fraction form
    547,987.20/821,969.28 = 252,499.20/x
  3. Step 3: Cross multiply
    547,987.20x = 821,969.28 × 252,499.20
  4. Step 4: Simplify right side
    547,987.20x = 207,546,585,624.58
  5. Step 5: Solve for x
    x = 207,546,585,624.58/547,987.20
  6. Step 6: Final answer
    x = 378,743.49

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Similar ratio
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1.5x scale

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.