Home / 739,390.57-1,109,085.96-178,425.07

Finding the Fourth Proportional to 739,390.57, 1,109,085.96 and 178,425.07

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Solution

The fourth proportional to 739,390.57, 1,109,085.96 and 178,425.07 is: 267,637.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,390.57 : 1,109,085.96 = 178,425.07 : x
  2. Step 2: Convert to fraction form
    739,390.57/1,109,085.96 = 178,425.07/x
  3. Step 3: Cross multiply
    739,390.57x = 1,109,085.96 × 178,425.07
  4. Step 4: Simplify right side
    739,390.57x = 197,888,740,049.02
  5. Step 5: Solve for x
    x = 197,888,740,049.02/739,390.57
  6. Step 6: Final answer
    x = 267,637.63

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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.