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Finding the Fourth Proportional to 1,182,793, 1,632,255.78 and 646,249

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Solution

The fourth proportional to 1,182,793, 1,632,255.78 and 646,249 is: 891,824.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,793 : 1,632,255.78 = 646,249 : x
  2. Step 2: Convert to fraction form
    1,182,793/1,632,255.78 = 646,249/x
  3. Step 3: Cross multiply
    1,182,793x = 1,632,255.78 × 646,249
  4. Step 4: Simplify right side
    1,182,793x = 1,054,843,665,569.22
  5. Step 5: Solve for x
    x = 1,054,843,665,569.22/1,182,793
  6. Step 6: Final answer
    x = 891,824.41

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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.