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Finding the Fourth Proportional to 636,324.60, 878,087.34 and 364,392.12

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Solution

The fourth proportional to 636,324.60, 878,087.34 and 364,392.12 is: 502,837.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,324.60 : 878,087.34 = 364,392.12 : x
  2. Step 2: Convert to fraction form
    636,324.60/878,087.34 = 364,392.12/x
  3. Step 3: Cross multiply
    636,324.60x = 878,087.34 × 364,392.12
  4. Step 4: Simplify right side
    636,324.60x = 319,968,107,367.76
  5. Step 5: Solve for x
    x = 319,968,107,367.76/636,324.60
  6. Step 6: Final answer
    x = 502,837.87

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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.