Home / 852,734.04-1,278,426.33-320,195.76

Finding the Fourth Proportional to 852,734.04, 1,278,426.33 and 320,195.76

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Solution

The fourth proportional to 852,734.04, 1,278,426.33 and 320,195.76 is: 480,040.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,734.04 : 1,278,426.33 = 320,195.76 : x
  2. Step 2: Convert to fraction form
    852,734.04/1,278,426.33 = 320,195.76/x
  3. Step 3: Cross multiply
    852,734.04x = 1,278,426.33 × 320,195.76
  4. Step 4: Simplify right side
    852,734.04x = 409,346,690,338.36
  5. Step 5: Solve for x
    x = 409,346,690,338.36/852,734.04
  6. Step 6: Final answer
    x = 480,040.28

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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.