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Finding the Fourth Proportional to 636,976.92, 878,927.78 and 364,992.52

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Solution

The fourth proportional to 636,976.92, 878,927.78 and 364,992.52 is: 503,632.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,976.92 : 878,927.78 = 364,992.52 : x
  2. Step 2: Convert to fraction form
    636,976.92/878,927.78 = 364,992.52/x
  3. Step 3: Cross multiply
    636,976.92x = 878,927.78 × 364,992.52
  4. Step 4: Simplify right side
    636,976.92x = 320,802,065,320.21
  5. Step 5: Solve for x
    x = 320,802,065,320.21/636,976.92
  6. Step 6: Final answer
    x = 503,632.17

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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.