Home / 578,928.38-867,817.87-274,789.58

Finding the Fourth Proportional to 578,928.38, 867,817.87 and 274,789.58

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Solution

The fourth proportional to 578,928.38, 867,817.87 and 274,789.58 is: 411,911.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,928.38 : 867,817.87 = 274,789.58 : x
  2. Step 2: Convert to fraction form
    578,928.38/867,817.87 = 274,789.58/x
  3. Step 3: Cross multiply
    578,928.38x = 867,817.87 × 274,789.58
  4. Step 4: Simplify right side
    578,928.38x = 238,467,308,013.80
  5. Step 5: Solve for x
    x = 238,467,308,013.80/578,928.38
  6. Step 6: Final answer
    x = 411,911.59

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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.