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Finding the Fourth Proportional to 561,372.32, 842,268 and 336,893.78

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Solution

The fourth proportional to 561,372.32, 842,268 and 336,893.78 is: 505,466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,372.32 : 842,268 = 336,893.78 : x
  2. Step 2: Convert to fraction form
    561,372.32/842,268 = 336,893.78/x
  3. Step 3: Cross multiply
    561,372.32x = 842,268 × 336,893.78
  4. Step 4: Simplify right side
    561,372.32x = 283,754,850,293.04
  5. Step 5: Solve for x
    x = 283,754,850,293.04/561,372.32
  6. Step 6: Final answer
    x = 505,466.41

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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.