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Finding the Fourth Proportional to 636,975.92, 878,926.38 and 364,991.52

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Solution

The fourth proportional to 636,975.92, 878,926.38 and 364,991.52 is: 503,630.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,975.92 : 878,926.38 = 364,991.52 : x
  2. Step 2: Convert to fraction form
    636,975.92/878,926.38 = 364,991.52/x
  3. Step 3: Cross multiply
    636,975.92x = 878,926.38 × 364,991.52
  4. Step 4: Simplify right side
    636,975.92x = 320,800,675,404.30
  5. Step 5: Solve for x
    x = 320,800,675,404.30/636,975.92
  6. Step 6: Final answer
    x = 503,630.77

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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.