Home / 811,942.29-1,120,369.44-467,650.17

Finding the Fourth Proportional to 811,942.29, 1,120,369.44 and 467,650.17

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Solution

The fourth proportional to 811,942.29, 1,120,369.44 and 467,650.17 is: 645,293.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,942.29 : 1,120,369.44 = 467,650.17 : x
  2. Step 2: Convert to fraction form
    811,942.29/1,120,369.44 = 467,650.17/x
  3. Step 3: Cross multiply
    811,942.29x = 1,120,369.44 × 467,650.17
  4. Step 4: Simplify right side
    811,942.29x = 523,940,959,078.81
  5. Step 5: Solve for x
    x = 523,940,959,078.81/811,942.29
  6. Step 6: Final answer
    x = 645,293.35

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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.