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Finding the Fourth Proportional to 502,173.70, 693,110.05 and 330,107.56

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Solution

The fourth proportional to 502,173.70, 693,110.05 and 330,107.56 is: 455,620.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,173.70 : 693,110.05 = 330,107.56 : x
  2. Step 2: Convert to fraction form
    502,173.70/693,110.05 = 330,107.56/x
  3. Step 3: Cross multiply
    502,173.70x = 693,110.05 × 330,107.56
  4. Step 4: Simplify right side
    502,173.70x = 228,800,863,951.43
  5. Step 5: Solve for x
    x = 228,800,863,951.43/502,173.70
  6. Step 6: Final answer
    x = 455,620.97

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1.5x scale

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.