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Finding the Fourth Proportional to 449,741.40, 620,651.28 and 245,800.96

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Solution

The fourth proportional to 449,741.40, 620,651.28 and 245,800.96 is: 339,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,741.40 : 620,651.28 = 245,800.96 : x
  2. Step 2: Convert to fraction form
    449,741.40/620,651.28 = 245,800.96/x
  3. Step 3: Cross multiply
    449,741.40x = 620,651.28 × 245,800.96
  4. Step 4: Simplify right side
    449,741.40x = 152,556,680,449.23
  5. Step 5: Solve for x
    x = 152,556,680,449.23/449,741.40
  6. Step 6: Final answer
    x = 339,209.78

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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.