Home / 677,999.80-1,016,999.70-172,559.80

Finding the Fourth Proportional to 677,999.80, 1,016,999.70 and 172,559.80

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Solution

The fourth proportional to 677,999.80, 1,016,999.70 and 172,559.80 is: 258,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,999.80 : 1,016,999.70 = 172,559.80 : x
  2. Step 2: Convert to fraction form
    677,999.80/1,016,999.70 = 172,559.80/x
  3. Step 3: Cross multiply
    677,999.80x = 1,016,999.70 × 172,559.80
  4. Step 4: Simplify right side
    677,999.80x = 175,493,264,832.06
  5. Step 5: Solve for x
    x = 175,493,264,832.06/677,999.80
  6. Step 6: Final answer
    x = 258,839.70

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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.