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Finding the Fourth Proportional to 1,376,981.02, 1,899,689.32 and 796,097.42

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Solution

The fourth proportional to 1,376,981.02, 1,899,689.32 and 796,097.42 is: 1,098,299.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,981.02 : 1,899,689.32 = 796,097.42 : x
  2. Step 2: Convert to fraction form
    1,376,981.02/1,899,689.32 = 796,097.42/x
  3. Step 3: Cross multiply
    1,376,981.02x = 1,899,689.32 × 796,097.42
  4. Step 4: Simplify right side
    1,376,981.02x = 1,512,337,766,453.55
  5. Step 5: Solve for x
    x = 1,512,337,766,453.55/1,376,981.02
  6. Step 6: Final answer
    x = 1,098,299.65

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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.