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Finding the Fourth Proportional to 449,658.04, 620,520.60 and 245,704.48

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Solution

The fourth proportional to 449,658.04, 620,520.60 and 245,704.48 is: 339,068.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,658.04 : 620,520.60 = 245,704.48 : x
  2. Step 2: Convert to fraction form
    449,658.04/620,520.60 = 245,704.48/x
  3. Step 3: Cross multiply
    449,658.04x = 620,520.60 × 245,704.48
  4. Step 4: Simplify right side
    449,658.04x = 152,464,691,352.29
  5. Step 5: Solve for x
    x = 152,464,691,352.29/449,658.04
  6. Step 6: Final answer
    x = 339,068.09

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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.