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Finding the Fourth Proportional to 449,287.98, 620,042.74 and 245,357.88

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Solution

The fourth proportional to 449,287.98, 620,042.74 and 245,357.88 is: 338,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,287.98 : 620,042.74 = 245,357.88 : x
  2. Step 2: Convert to fraction form
    449,287.98/620,042.74 = 245,357.88/x
  3. Step 3: Cross multiply
    449,287.98x = 620,042.74 × 245,357.88
  4. Step 4: Simplify right side
    449,287.98x = 152,132,372,195.79
  5. Step 5: Solve for x
    x = 152,132,372,195.79/449,287.98
  6. Step 6: Final answer
    x = 338,607.71

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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.