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Finding the Fourth Proportional to 494,893.70, 741,684.45 and 438,469.10

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Solution

The fourth proportional to 494,893.70, 741,684.45 and 438,469.10 is: 657,122.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,893.70 : 741,684.45 = 438,469.10 : x
  2. Step 2: Convert to fraction form
    494,893.70/741,684.45 = 438,469.10/x
  3. Step 3: Cross multiply
    494,893.70x = 741,684.45 × 438,469.10
  4. Step 4: Simplify right side
    494,893.70x = 325,205,713,275.50
  5. Step 5: Solve for x
    x = 325,205,713,275.50/494,893.70
  6. Step 6: Final answer
    x = 657,122.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.