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Finding the Fourth Proportional to 636,328.60, 878,092.86 and 364,396.12

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Solution

The fourth proportional to 636,328.60, 878,092.86 and 364,396.12 is: 502,843.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,328.60 : 878,092.86 = 364,396.12 : x
  2. Step 2: Convert to fraction form
    636,328.60/878,092.86 = 364,396.12/x
  3. Step 3: Cross multiply
    636,328.60x = 878,092.86 × 364,396.12
  4. Step 4: Simplify right side
    636,328.60x = 319,973,631,183.70
  5. Step 5: Solve for x
    x = 319,973,631,183.70/636,328.60
  6. Step 6: Final answer
    x = 502,843.39

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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.