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Finding the Fourth Proportional to 548,640.30, 822,960.45 and 495,496.20

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Solution

The fourth proportional to 548,640.30, 822,960.45 and 495,496.20 is: 743,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,640.30 : 822,960.45 = 495,496.20 : x
  2. Step 2: Convert to fraction form
    548,640.30/822,960.45 = 495,496.20/x
  3. Step 3: Cross multiply
    548,640.30x = 822,960.45 × 495,496.20
  4. Step 4: Simplify right side
    548,640.30x = 407,773,775,725.29
  5. Step 5: Solve for x
    x = 407,773,775,725.29/548,640.30
  6. Step 6: Final answer
    x = 743,244.30

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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.