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Finding the Fourth Proportional to 636,674.50, 878,735.60 and 364,924.54

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Solution

The fourth proportional to 636,674.50, 878,735.60 and 364,924.54 is: 503,667.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,674.50 : 878,735.60 = 364,924.54 : x
  2. Step 2: Convert to fraction form
    636,674.50/878,735.60 = 364,924.54/x
  3. Step 3: Cross multiply
    636,674.50x = 878,735.60 × 364,924.54
  4. Step 4: Simplify right side
    636,674.50x = 320,672,184,611.62
  5. Step 5: Solve for x
    x = 320,672,184,611.62/636,674.50
  6. Step 6: Final answer
    x = 503,667.39

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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.