Home / 463,013.20-693,801.36-321,135.12

Finding the Fourth Proportional to 463,013.20, 693,801.36 and 321,135.12

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Solution

The fourth proportional to 463,013.20, 693,801.36 and 321,135.12 is: 481,204.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,013.20 : 693,801.36 = 321,135.12 : x
  2. Step 2: Convert to fraction form
    463,013.20/693,801.36 = 321,135.12/x
  3. Step 3: Cross multiply
    463,013.20x = 693,801.36 × 321,135.12
  4. Step 4: Simplify right side
    463,013.20x = 222,803,982,999.76
  5. Step 5: Solve for x
    x = 222,803,982,999.76/463,013.20
  6. Step 6: Final answer
    x = 481,204.39

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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.