Home / 677,912.80-1,016,869.20-172,472.80

Finding the Fourth Proportional to 677,912.80, 1,016,869.20 and 172,472.80

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Solution

The fourth proportional to 677,912.80, 1,016,869.20 and 172,472.80 is: 258,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,912.80 : 1,016,869.20 = 172,472.80 : x
  2. Step 2: Convert to fraction form
    677,912.80/1,016,869.20 = 172,472.80/x
  3. Step 3: Cross multiply
    677,912.80x = 1,016,869.20 × 172,472.80
  4. Step 4: Simplify right side
    677,912.80x = 175,382,278,157.76
  5. Step 5: Solve for x
    x = 175,382,278,157.76/677,912.80
  6. Step 6: Final answer
    x = 258,709.20

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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.