Home / 748,989.24-1,123,766.90-449,678.46

Finding the Fourth Proportional to 748,989.24, 1,123,766.90 and 449,678.46

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Solution

The fourth proportional to 748,989.24, 1,123,766.90 and 449,678.46 is: 674,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,989.24 : 1,123,766.90 = 449,678.46 : x
  2. Step 2: Convert to fraction form
    748,989.24/1,123,766.90 = 449,678.46/x
  3. Step 3: Cross multiply
    748,989.24x = 1,123,766.90 × 449,678.46
  4. Step 4: Simplify right side
    748,989.24x = 505,333,768,990.97
  5. Step 5: Solve for x
    x = 505,333,768,990.97/748,989.24
  6. Step 6: Final answer
    x = 674,687.62

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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.