Home / 677,871.42-1,016,812.97-172,432.88

Finding the Fourth Proportional to 677,871.42, 1,016,812.97 and 172,432.88

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Solution

The fourth proportional to 677,871.42, 1,016,812.97 and 172,432.88 is: 258,650.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,871.42 : 1,016,812.97 = 172,432.88 : x
  2. Step 2: Convert to fraction form
    677,871.42/1,016,812.97 = 172,432.88/x
  3. Step 3: Cross multiply
    677,871.42x = 1,016,812.97 × 172,432.88
  4. Step 4: Simplify right side
    677,871.42x = 175,331,991,568.04
  5. Step 5: Solve for x
    x = 175,331,991,568.04/677,871.42
  6. Step 6: Final answer
    x = 258,650.81

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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.