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Finding the Fourth Proportional to 667,091.50, 999,807.81 and 292,737.58

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Solution

The fourth proportional to 667,091.50, 999,807.81 and 292,737.58 is: 438,742.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,091.50 : 999,807.81 = 292,737.58 : x
  2. Step 2: Convert to fraction form
    667,091.50/999,807.81 = 292,737.58/x
  3. Step 3: Cross multiply
    667,091.50x = 999,807.81 × 292,737.58
  4. Step 4: Simplify right side
    667,091.50x = 292,681,318,764.50
  5. Step 5: Solve for x
    x = 292,681,318,764.50/667,091.50
  6. Step 6: Final answer
    x = 438,742.39

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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.