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Finding the Fourth Proportional to 502,870.37, 693,961.11 and 276,515.87

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Solution

The fourth proportional to 502,870.37, 693,961.11 and 276,515.87 is: 381,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,870.37 : 693,961.11 = 276,515.87 : x
  2. Step 2: Convert to fraction form
    502,870.37/693,961.11 = 276,515.87/x
  3. Step 3: Cross multiply
    502,870.37x = 693,961.11 × 276,515.87
  4. Step 4: Simplify right side
    502,870.37x = 191,891,256,608.01
  5. Step 5: Solve for x
    x = 191,891,256,608.01/502,870.37
  6. Step 6: Final answer
    x = 381,591.90

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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.