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Finding the Fourth Proportional to 636,665.25, 878,722.85 and 364,915.31

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Solution

The fourth proportional to 636,665.25, 878,722.85 and 364,915.31 is: 503,654.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,665.25 : 878,722.85 = 364,915.31 : x
  2. Step 2: Convert to fraction form
    636,665.25/878,722.85 = 364,915.31/x
  3. Step 3: Cross multiply
    636,665.25x = 878,722.85 × 364,915.31
  4. Step 4: Simplify right side
    636,665.25x = 320,659,424,320.93
  5. Step 5: Solve for x
    x = 320,659,424,320.93/636,665.25
  6. Step 6: Final answer
    x = 503,654.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.