Home / 852,107.24-1,278,821.82-320,112.20

Finding the Fourth Proportional to 852,107.24, 1,278,821.82 and 320,112.20

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Solution

The fourth proportional to 852,107.24, 1,278,821.82 and 320,112.20 is: 480,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,107.24 : 1,278,821.82 = 320,112.20 : x
  2. Step 2: Convert to fraction form
    852,107.24/1,278,821.82 = 320,112.20/x
  3. Step 3: Cross multiply
    852,107.24x = 1,278,821.82 × 320,112.20
  4. Step 4: Simplify right side
    852,107.24x = 409,366,466,208.20
  5. Step 5: Solve for x
    x = 409,366,466,208.20/852,107.24
  6. Step 6: Final answer
    x = 480,416.60

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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.