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Finding the Fourth Proportional to 891,698.12, 1,336,759.84 and 682,271

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Solution

The fourth proportional to 891,698.12, 1,336,759.84 and 682,271 is: 1,022,804.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,698.12 : 1,336,759.84 = 682,271 : x
  2. Step 2: Convert to fraction form
    891,698.12/1,336,759.84 = 682,271/x
  3. Step 3: Cross multiply
    891,698.12x = 1,336,759.84 × 682,271
  4. Step 4: Simplify right side
    891,698.12x = 912,032,472,796.64
  5. Step 5: Solve for x
    x = 912,032,472,796.64/891,698.12
  6. Step 6: Final answer
    x = 1,022,804.08

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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.