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Finding the Fourth Proportional to 627,722, 941,591.64 and 347,786

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Solution

The fourth proportional to 627,722, 941,591.64 and 347,786 is: 521,683.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,722 : 941,591.64 = 347,786 : x
  2. Step 2: Convert to fraction form
    627,722/941,591.64 = 347,786/x
  3. Step 3: Cross multiply
    627,722x = 941,591.64 × 347,786
  4. Step 4: Simplify right side
    627,722x = 327,472,390,109.04
  5. Step 5: Solve for x
    x = 327,472,390,109.04/627,722
  6. Step 6: Final answer
    x = 521,683.79

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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.