Home / 738,194.73-1,107,411.36-311,794.66

Finding the Fourth Proportional to 738,194.73, 1,107,411.36 and 311,794.66

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Solution

The fourth proportional to 738,194.73, 1,107,411.36 and 311,794.66 is: 467,742.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,194.73 : 1,107,411.36 = 311,794.66 : x
  2. Step 2: Convert to fraction form
    738,194.73/1,107,411.36 = 311,794.66/x
  3. Step 3: Cross multiply
    738,194.73x = 1,107,411.36 × 311,794.66
  4. Step 4: Simplify right side
    738,194.73x = 345,284,948,471.34
  5. Step 5: Solve for x
    x = 345,284,948,471.34/738,194.73
  6. Step 6: Final answer
    x = 467,742.36

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Double scale
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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.