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Finding the Fourth Proportional to 449,452.56, 620,240.31 and 245,503.38

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Solution

The fourth proportional to 449,452.56, 620,240.31 and 245,503.38 is: 338,792.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,452.56 : 620,240.31 = 245,503.38 : x
  2. Step 2: Convert to fraction form
    449,452.56/620,240.31 = 245,503.38/x
  3. Step 3: Cross multiply
    449,452.56x = 620,240.31 × 245,503.38
  4. Step 4: Simplify right side
    449,452.56x = 152,271,092,517.25
  5. Step 5: Solve for x
    x = 152,271,092,517.25/449,452.56
  6. Step 6: Final answer
    x = 338,792.36

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1.5x scale

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.