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Finding the Fourth Proportional to 531,505.62, 797,719.04 and 278,964.48

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Solution

The fourth proportional to 531,505.62, 797,719.04 and 278,964.48 is: 418,688.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,505.62 : 797,719.04 = 278,964.48 : x
  2. Step 2: Convert to fraction form
    531,505.62/797,719.04 = 278,964.48/x
  3. Step 3: Cross multiply
    531,505.62x = 797,719.04 × 278,964.48
  4. Step 4: Simplify right side
    531,505.62x = 222,535,277,179.70
  5. Step 5: Solve for x
    x = 222,535,277,179.70/531,505.62
  6. Step 6: Final answer
    x = 418,688.47

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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.