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Finding the Fourth Proportional to 468,691.10, 646,310 and 400,932.37

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Solution

The fourth proportional to 468,691.10, 646,310 and 400,932.37 is: 552,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,691.10 : 646,310 = 400,932.37 : x
  2. Step 2: Convert to fraction form
    468,691.10/646,310 = 400,932.37/x
  3. Step 3: Cross multiply
    468,691.10x = 646,310 × 400,932.37
  4. Step 4: Simplify right side
    468,691.10x = 259,126,600,054.70
  5. Step 5: Solve for x
    x = 259,126,600,054.70/468,691.10
  6. Step 6: Final answer
    x = 552,872.88

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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.