Home / 821,232.60-1,231,630.20-252,612.60

Finding the Fourth Proportional to 821,232.60, 1,231,630.20 and 252,612.60

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Solution

The fourth proportional to 821,232.60, 1,231,630.20 and 252,612.60 is: 378,851.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,232.60 : 1,231,630.20 = 252,612.60 : x
  2. Step 2: Convert to fraction form
    821,232.60/1,231,630.20 = 252,612.60/x
  3. Step 3: Cross multiply
    821,232.60x = 1,231,630.20 × 252,612.60
  4. Step 4: Simplify right side
    821,232.60x = 311,125,307,060.52
  5. Step 5: Solve for x
    x = 311,125,307,060.52/821,232.60
  6. Step 6: Final answer
    x = 378,851.63

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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.