Home / 738,193.61-1,107,409.67-311,793.54

Finding the Fourth Proportional to 738,193.61, 1,107,409.67 and 311,793.54

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Solution

The fourth proportional to 738,193.61, 1,107,409.67 and 311,793.54 is: 467,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,193.61 : 1,107,409.67 = 311,793.54 : x
  2. Step 2: Convert to fraction form
    738,193.61/1,107,409.67 = 311,793.54/x
  3. Step 3: Cross multiply
    738,193.61x = 1,107,409.67 × 311,793.54
  4. Step 4: Simplify right side
    738,193.61x = 345,283,181,239.53
  5. Step 5: Solve for x
    x = 345,283,181,239.53/738,193.61
  6. Step 6: Final answer
    x = 467,740.68

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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.