Home / 1,202,455.82-1,659,415.88-686,199.43

Finding the Fourth Proportional to 1,202,455.82, 1,659,415.88 and 686,199.43

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Solution

The fourth proportional to 1,202,455.82, 1,659,415.88 and 686,199.43 is: 946,970.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202,455.82 : 1,659,415.88 = 686,199.43 : x
  2. Step 2: Convert to fraction form
    1,202,455.82/1,659,415.88 = 686,199.43/x
  3. Step 3: Cross multiply
    1,202,455.82x = 1,659,415.88 × 686,199.43
  4. Step 4: Simplify right side
    1,202,455.82x = 1,138,690,230,988.95
  5. Step 5: Solve for x
    x = 1,138,690,230,988.95/1,202,455.82
  6. Step 6: Final answer
    x = 946,970.53

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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.