Home / 677,428.20-1,016,142.75-172,027.08

Finding the Fourth Proportional to 677,428.20, 1,016,142.75 and 172,027.08

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Solution

The fourth proportional to 677,428.20, 1,016,142.75 and 172,027.08 is: 258,040.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,428.20 : 1,016,142.75 = 172,027.08 : x
  2. Step 2: Convert to fraction form
    677,428.20/1,016,142.75 = 172,027.08/x
  3. Step 3: Cross multiply
    677,428.20x = 1,016,142.75 × 172,027.08
  4. Step 4: Simplify right side
    677,428.20x = 174,804,070,145.67
  5. Step 5: Solve for x
    x = 174,804,070,145.67/677,428.20
  6. Step 6: Final answer
    x = 258,040.73

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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.