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Finding the Fourth Proportional to 809,865, 1,117,682.82 and 452,238.12

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Solution

The fourth proportional to 809,865, 1,117,682.82 and 452,238.12 is: 624,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,865 : 1,117,682.82 = 452,238.12 : x
  2. Step 2: Convert to fraction form
    809,865/1,117,682.82 = 452,238.12/x
  3. Step 3: Cross multiply
    809,865x = 1,117,682.82 × 452,238.12
  4. Step 4: Simplify right side
    809,865x = 505,458,777,273.10
  5. Step 5: Solve for x
    x = 505,458,777,273.10/809,865
  6. Step 6: Final answer
    x = 624,127.20

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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.