Home / 739,837.20-1,109,755.80-341,256.45

Finding the Fourth Proportional to 739,837.20, 1,109,755.80 and 341,256.45

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Solution

The fourth proportional to 739,837.20, 1,109,755.80 and 341,256.45 is: 511,884.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,837.20 : 1,109,755.80 = 341,256.45 : x
  2. Step 2: Convert to fraction form
    739,837.20/1,109,755.80 = 341,256.45/x
  3. Step 3: Cross multiply
    739,837.20x = 1,109,755.80 × 341,256.45
  4. Step 4: Simplify right side
    739,837.20x = 378,711,324,674.91
  5. Step 5: Solve for x
    x = 378,711,324,674.91/739,837.20
  6. Step 6: Final answer
    x = 511,884.68

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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.