Home / 852,077.60-1,278,116.40-253,131.20

Finding the Fourth Proportional to 852,077.60, 1,278,116.40 and 253,131.20

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Solution

The fourth proportional to 852,077.60, 1,278,116.40 and 253,131.20 is: 379,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,077.60 : 1,278,116.40 = 253,131.20 : x
  2. Step 2: Convert to fraction form
    852,077.60/1,278,116.40 = 253,131.20/x
  3. Step 3: Cross multiply
    852,077.60x = 1,278,116.40 × 253,131.20
  4. Step 4: Simplify right side
    852,077.60x = 323,531,138,071.68
  5. Step 5: Solve for x
    x = 323,531,138,071.68/852,077.60
  6. Step 6: Final answer
    x = 379,696.80

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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.