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Finding the Fourth Proportional to 640,963.43, 884,522.37 and 350,583.34

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Solution

The fourth proportional to 640,963.43, 884,522.37 and 350,583.34 is: 483,801.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,963.43 : 884,522.37 = 350,583.34 : x
  2. Step 2: Convert to fraction form
    640,963.43/884,522.37 = 350,583.34/x
  3. Step 3: Cross multiply
    640,963.43x = 884,522.37 × 350,583.34
  4. Step 4: Simplify right side
    640,963.43x = 310,098,805,076.14
  5. Step 5: Solve for x
    x = 310,098,805,076.14/640,963.43
  6. Step 6: Final answer
    x = 483,801.09

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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.