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Finding the Fourth Proportional to 492,604.38, 739,006.65 and 155,697.66

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Solution

The fourth proportional to 492,604.38, 739,006.65 and 155,697.66 is: 233,578.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,604.38 : 739,006.65 = 155,697.66 : x
  2. Step 2: Convert to fraction form
    492,604.38/739,006.65 = 155,697.66/x
  3. Step 3: Cross multiply
    492,604.38x = 739,006.65 × 155,697.66
  4. Step 4: Simplify right side
    492,604.38x = 115,061,606,129.44
  5. Step 5: Solve for x
    x = 115,061,606,129.44/492,604.38
  6. Step 6: Final answer
    x = 233,578.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.