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Finding the Fourth Proportional to 531,662.16, 797,953.86 and 279,121.44

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Solution

The fourth proportional to 531,662.16, 797,953.86 and 279,121.44 is: 418,923.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,662.16 : 797,953.86 = 279,121.44 : x
  2. Step 2: Convert to fraction form
    531,662.16/797,953.86 = 279,121.44/x
  3. Step 3: Cross multiply
    531,662.16x = 797,953.86 × 279,121.44
  4. Step 4: Simplify right side
    531,662.16x = 222,726,030,456.76
  5. Step 5: Solve for x
    x = 222,726,030,456.76/531,662.16
  6. Step 6: Final answer
    x = 418,923.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.