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Finding the Fourth Proportional to 633,893.31, 874,771.04 and 343,512.90

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Solution

The fourth proportional to 633,893.31, 874,771.04 and 343,512.90 is: 474,046.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,893.31 : 874,771.04 = 343,512.90 : x
  2. Step 2: Convert to fraction form
    633,893.31/874,771.04 = 343,512.90/x
  3. Step 3: Cross multiply
    633,893.31x = 874,771.04 × 343,512.90
  4. Step 4: Simplify right side
    633,893.31x = 300,495,137,645.20
  5. Step 5: Solve for x
    x = 300,495,137,645.20/633,893.31
  6. Step 6: Final answer
    x = 474,046.87

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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.