Home / 1,285,636.35-1,773,566.72-769,286.26

Finding the Fourth Proportional to 1,285,636.35, 1,773,566.72 and 769,286.26

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Solution

The fourth proportional to 1,285,636.35, 1,773,566.72 and 769,286.26 is: 1,061,249.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,636.35 : 1,773,566.72 = 769,286.26 : x
  2. Step 2: Convert to fraction form
    1,285,636.35/1,773,566.72 = 769,286.26/x
  3. Step 3: Cross multiply
    1,285,636.35x = 1,773,566.72 × 769,286.26
  4. Step 4: Simplify right side
    1,285,636.35x = 1,364,380,510,144.62
  5. Step 5: Solve for x
    x = 1,364,380,510,144.62/1,285,636.35
  6. Step 6: Final answer
    x = 1,061,249.17

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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.