Home / 677,942.80-1,016,914.20-172,502.80

Finding the Fourth Proportional to 677,942.80, 1,016,914.20 and 172,502.80

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Solution

The fourth proportional to 677,942.80, 1,016,914.20 and 172,502.80 is: 258,754.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,942.80 : 1,016,914.20 = 172,502.80 : x
  2. Step 2: Convert to fraction form
    677,942.80/1,016,914.20 = 172,502.80/x
  3. Step 3: Cross multiply
    677,942.80x = 1,016,914.20 × 172,502.80
  4. Step 4: Simplify right side
    677,942.80x = 175,420,546,859.76
  5. Step 5: Solve for x
    x = 175,420,546,859.76/677,942.80
  6. Step 6: Final answer
    x = 258,754.20

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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.