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Finding the Fourth Proportional to 627,996, 866,634.48 and 359,741.28

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Solution

The fourth proportional to 627,996, 866,634.48 and 359,741.28 is: 496,442.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,996 : 866,634.48 = 359,741.28 : x
  2. Step 2: Convert to fraction form
    627,996/866,634.48 = 359,741.28/x
  3. Step 3: Cross multiply
    627,996x = 866,634.48 × 359,741.28
  4. Step 4: Simplify right side
    627,996x = 311,764,197,127.33
  5. Step 5: Solve for x
    x = 311,764,197,127.33/627,996
  6. Step 6: Final answer
    x = 496,442.97

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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.