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Finding the Fourth Proportional to 561,231.78, 842,056.80 and 336,753.32

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Solution

The fourth proportional to 561,231.78, 842,056.80 and 336,753.32 is: 505,255.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,231.78 : 842,056.80 = 336,753.32 : x
  2. Step 2: Convert to fraction form
    561,231.78/842,056.80 = 336,753.32/x
  3. Step 3: Cross multiply
    561,231.78x = 842,056.80 × 336,753.32
  4. Step 4: Simplify right side
    561,231.78x = 283,565,418,818.29
  5. Step 5: Solve for x
    x = 283,565,418,818.29/561,231.78
  6. Step 6: Final answer
    x = 505,255.46

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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.