Home / 852,080.10-1,278,120.15-253,133.70

Finding the Fourth Proportional to 852,080.10, 1,278,120.15 and 253,133.70

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Solution

The fourth proportional to 852,080.10, 1,278,120.15 and 253,133.70 is: 379,700.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,080.10 : 1,278,120.15 = 253,133.70 : x
  2. Step 2: Convert to fraction form
    852,080.10/1,278,120.15 = 253,133.70/x
  3. Step 3: Cross multiply
    852,080.10x = 1,278,120.15 × 253,133.70
  4. Step 4: Simplify right side
    852,080.10x = 323,535,282,614.06
  5. Step 5: Solve for x
    x = 323,535,282,614.06/852,080.10
  6. Step 6: Final answer
    x = 379,700.55

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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.