Home / 547,991.20-821,975.28-252,503.20

Finding the Fourth Proportional to 547,991.20, 821,975.28 and 252,503.20

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Solution

The fourth proportional to 547,991.20, 821,975.28 and 252,503.20 is: 378,749.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,991.20 : 821,975.28 = 252,503.20 : x
  2. Step 2: Convert to fraction form
    547,991.20/821,975.28 = 252,503.20/x
  3. Step 3: Cross multiply
    547,991.20x = 821,975.28 × 252,503.20
  4. Step 4: Simplify right side
    547,991.20x = 207,551,388,520.90
  5. Step 5: Solve for x
    x = 207,551,388,520.90/547,991.20
  6. Step 6: Final answer
    x = 378,749.49

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Double scale
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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.