Home / 678,758.22-1,016,587.26-324,021.42

Finding the Fourth Proportional to 678,758.22, 1,016,587.26 and 324,021.42

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Solution

The fourth proportional to 678,758.22, 1,016,587.26 and 324,021.42 is: 485,292.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,758.22 : 1,016,587.26 = 324,021.42 : x
  2. Step 2: Convert to fraction form
    678,758.22/1,016,587.26 = 324,021.42/x
  3. Step 3: Cross multiply
    678,758.22x = 1,016,587.26 × 324,021.42
  4. Step 4: Simplify right side
    678,758.22x = 329,396,047,539.11
  5. Step 5: Solve for x
    x = 329,396,047,539.11/678,758.22
  6. Step 6: Final answer
    x = 485,292.17

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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.