Home / 501,302.88-691,815.60-274,949.28

Finding the Fourth Proportional to 501,302.88, 691,815.60 and 274,949.28

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Solution

The fourth proportional to 501,302.88, 691,815.60 and 274,949.28 is: 379,439.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,302.88 : 691,815.60 = 274,949.28 : x
  2. Step 2: Convert to fraction form
    501,302.88/691,815.60 = 274,949.28/x
  3. Step 3: Cross multiply
    501,302.88x = 691,815.60 × 274,949.28
  4. Step 4: Simplify right side
    501,302.88x = 190,214,201,112.77
  5. Step 5: Solve for x
    x = 190,214,201,112.77/501,302.88
  6. Step 6: Final answer
    x = 379,439.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.