Home / 852,021.40-1,278,213.54-252,984.28

Finding the Fourth Proportional to 852,021.40, 1,278,213.54 and 252,984.28

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Solution

The fourth proportional to 852,021.40, 1,278,213.54 and 252,984.28 is: 379,530.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,021.40 : 1,278,213.54 = 252,984.28 : x
  2. Step 2: Convert to fraction form
    852,021.40/1,278,213.54 = 252,984.28/x
  3. Step 3: Cross multiply
    852,021.40x = 1,278,213.54 × 252,984.28
  4. Step 4: Simplify right side
    852,021.40x = 323,367,932,103.15
  5. Step 5: Solve for x
    x = 323,367,932,103.15/852,021.40
  6. Step 6: Final answer
    x = 379,530.29

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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.