Home / 727,396.56-1,003,731.75-447,949.34

Finding the Fourth Proportional to 727,396.56, 1,003,731.75 and 447,949.34

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Solution

The fourth proportional to 727,396.56, 1,003,731.75 and 447,949.34 is: 618,123.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,396.56 : 1,003,731.75 = 447,949.34 : x
  2. Step 2: Convert to fraction form
    727,396.56/1,003,731.75 = 447,949.34/x
  3. Step 3: Cross multiply
    727,396.56x = 1,003,731.75 × 447,949.34
  4. Step 4: Simplify right side
    727,396.56x = 449,620,969,930.89
  5. Step 5: Solve for x
    x = 449,620,969,930.89/727,396.56
  6. Step 6: Final answer
    x = 618,123.59

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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.