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Finding the Fourth Proportional to 605,333.92, 834,960.70 and 378,585.76

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Solution

The fourth proportional to 605,333.92, 834,960.70 and 378,585.76 is: 522,198.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,333.92 : 834,960.70 = 378,585.76 : x
  2. Step 2: Convert to fraction form
    605,333.92/834,960.70 = 378,585.76/x
  3. Step 3: Cross multiply
    605,333.92x = 834,960.70 × 378,585.76
  4. Step 4: Simplify right side
    605,333.92x = 316,104,231,179.63
  5. Step 5: Solve for x
    x = 316,104,231,179.63/605,333.92
  6. Step 6: Final answer
    x = 522,198.11

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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.