Home / 678,280.76-1,016,647.19-273,213.59

Finding the Fourth Proportional to 678,280.76, 1,016,647.19 and 273,213.59

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Solution

The fourth proportional to 678,280.76, 1,016,647.19 and 273,213.59 is: 409,508.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,280.76 : 1,016,647.19 = 273,213.59 : x
  2. Step 2: Convert to fraction form
    678,280.76/1,016,647.19 = 273,213.59/x
  3. Step 3: Cross multiply
    678,280.76x = 1,016,647.19 × 273,213.59
  4. Step 4: Simplify right side
    678,280.76x = 277,761,824,143.11
  5. Step 5: Solve for x
    x = 277,761,824,143.11/678,280.76
  6. Step 6: Final answer
    x = 409,508.63

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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.