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Finding the Fourth Proportional to 510,013.85, 703,336.04 and 326,310.55

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Solution

The fourth proportional to 510,013.85, 703,336.04 and 326,310.55 is: 449,999.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,013.85 : 703,336.04 = 326,310.55 : x
  2. Step 2: Convert to fraction form
    510,013.85/703,336.04 = 326,310.55/x
  3. Step 3: Cross multiply
    510,013.85x = 703,336.04 × 326,310.55
  4. Step 4: Simplify right side
    510,013.85x = 229,505,965,974.18
  5. Step 5: Solve for x
    x = 229,505,965,974.18/510,013.85
  6. Step 6: Final answer
    x = 449,999.48

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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.