Home / 438,939.48-658,409.24-123,396.44

Finding the Fourth Proportional to 438,939.48, 658,409.24 and 123,396.44

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Solution

The fourth proportional to 438,939.48, 658,409.24 and 123,396.44 is: 185,094.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,939.48 : 658,409.24 = 123,396.44 : x
  2. Step 2: Convert to fraction form
    438,939.48/658,409.24 = 123,396.44/x
  3. Step 3: Cross multiply
    438,939.48x = 658,409.24 × 123,396.44
  4. Step 4: Simplify right side
    438,939.48x = 81,245,356,279.11
  5. Step 5: Solve for x
    x = 81,245,356,279.11/438,939.48
  6. Step 6: Final answer
    x = 185,094.67

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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.