Home / 678,852.43-1,016,728.61-324,115.56

Finding the Fourth Proportional to 678,852.43, 1,016,728.61 and 324,115.56

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Solution

The fourth proportional to 678,852.43, 1,016,728.61 and 324,115.56 is: 485,433.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,852.43 : 1,016,728.61 = 324,115.56 : x
  2. Step 2: Convert to fraction form
    678,852.43/1,016,728.61 = 324,115.56/x
  3. Step 3: Cross multiply
    678,852.43x = 1,016,728.61 × 324,115.56
  4. Step 4: Simplify right side
    678,852.43x = 329,537,561,177.59
  5. Step 5: Solve for x
    x = 329,537,561,177.59/678,852.43
  6. Step 6: Final answer
    x = 485,433.28

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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.