Home / 449,735.20-620,634.18-248,531.20

Finding the Fourth Proportional to 449,735.20, 620,634.18 and 248,531.20

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Solution

The fourth proportional to 449,735.20, 620,634.18 and 248,531.20 is: 342,972.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,735.20 : 620,634.18 = 248,531.20 : x
  2. Step 2: Convert to fraction form
    449,735.20/620,634.18 = 248,531.20/x
  3. Step 3: Cross multiply
    449,735.20x = 620,634.18 × 248,531.20
  4. Step 4: Simplify right side
    449,735.20x = 154,246,957,516.42
  5. Step 5: Solve for x
    x = 154,246,957,516.42/449,735.20
  6. Step 6: Final answer
    x = 342,972.84

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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.