Home / 677,974.70-1,016,967.72-172,536.32

Finding the Fourth Proportional to 677,974.70, 1,016,967.72 and 172,536.32

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Solution

The fourth proportional to 677,974.70, 1,016,967.72 and 172,536.32 is: 258,805.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,974.70 : 1,016,967.72 = 172,536.32 : x
  2. Step 2: Convert to fraction form
    677,974.70/1,016,967.72 = 172,536.32/x
  3. Step 3: Cross multiply
    677,974.70x = 1,016,967.72 × 172,536.32
  4. Step 4: Simplify right side
    677,974.70x = 175,463,867,967.59
  5. Step 5: Solve for x
    x = 175,463,867,967.59/677,974.70
  6. Step 6: Final answer
    x = 258,805.92

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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.