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Finding the Fourth Proportional to 503,333.54, 694,630.18 and 288,487.49

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Solution

The fourth proportional to 503,333.54, 694,630.18 and 288,487.49 is: 398,129.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,333.54 : 694,630.18 = 288,487.49 : x
  2. Step 2: Convert to fraction form
    503,333.54/694,630.18 = 288,487.49/x
  3. Step 3: Cross multiply
    503,333.54x = 694,630.18 × 288,487.49
  4. Step 4: Simplify right side
    503,333.54x = 200,392,113,993.91
  5. Step 5: Solve for x
    x = 200,392,113,993.91/503,333.54
  6. Step 6: Final answer
    x = 398,129.87

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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.