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Finding the Fourth Proportional to 503,179.08, 694,486.38 and 288,463.32

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Solution

The fourth proportional to 503,179.08, 694,486.38 and 288,463.32 is: 398,136.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,179.08 : 694,486.38 = 288,463.32 : x
  2. Step 2: Convert to fraction form
    503,179.08/694,486.38 = 288,463.32/x
  3. Step 3: Cross multiply
    503,179.08x = 694,486.38 × 288,463.32
  4. Step 4: Simplify right side
    503,179.08x = 200,333,846,869.58
  5. Step 5: Solve for x
    x = 200,333,846,869.58/503,179.08
  6. Step 6: Final answer
    x = 398,136.28

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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.