Home / 738,193.73-1,107,409.86-311,793.66

Finding the Fourth Proportional to 738,193.73, 1,107,409.86 and 311,793.66

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Solution

The fourth proportional to 738,193.73, 1,107,409.86 and 311,793.66 is: 467,740.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,193.73 : 1,107,409.86 = 311,793.66 : x
  2. Step 2: Convert to fraction form
    738,193.73/1,107,409.86 = 311,793.66/x
  3. Step 3: Cross multiply
    738,193.73x = 1,107,409.86 × 311,793.66
  4. Step 4: Simplify right side
    738,193.73x = 345,283,373,369.49
  5. Step 5: Solve for x
    x = 345,283,373,369.49/738,193.73
  6. Step 6: Final answer
    x = 467,740.86

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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.