Home / 692,230.56-1,038,338.92-218,916

Finding the Fourth Proportional to 692,230.56, 1,038,338.92 and 218,916

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Solution

The fourth proportional to 692,230.56, 1,038,338.92 and 218,916 is: 328,371.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,230.56 : 1,038,338.92 = 218,916 : x
  2. Step 2: Convert to fraction form
    692,230.56/1,038,338.92 = 218,916/x
  3. Step 3: Cross multiply
    692,230.56x = 1,038,338.92 × 218,916
  4. Step 4: Simplify right side
    692,230.56x = 227,309,003,010.72
  5. Step 5: Solve for x
    x = 227,309,003,010.72/692,230.56
  6. Step 6: Final answer
    x = 328,371.81

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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.