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Finding the Fourth Proportional to 400,846.92, 552,902.92 and 257,787.96

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Solution

The fourth proportional to 400,846.92, 552,902.92 and 257,787.96 is: 355,576.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,846.92 : 552,902.92 = 257,787.96 : x
  2. Step 2: Convert to fraction form
    400,846.92/552,902.92 = 257,787.96/x
  3. Step 3: Cross multiply
    400,846.92x = 552,902.92 × 257,787.96
  4. Step 4: Simplify right side
    400,846.92x = 142,531,715,824.84
  5. Step 5: Solve for x
    x = 142,531,715,824.84/400,846.92
  6. Step 6: Final answer
    x = 355,576.43

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1.5x scale

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.