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Finding the Fourth Proportional to 843,311.78, 1,163,797.79 and 461,338.56

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Solution

The fourth proportional to 843,311.78, 1,163,797.79 and 461,338.56 is: 636,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,311.78 : 1,163,797.79 = 461,338.56 : x
  2. Step 2: Convert to fraction form
    843,311.78/1,163,797.79 = 461,338.56/x
  3. Step 3: Cross multiply
    843,311.78x = 1,163,797.79 × 461,338.56
  4. Step 4: Simplify right side
    843,311.78x = 536,904,794,263.09
  5. Step 5: Solve for x
    x = 536,904,794,263.09/843,311.78
  6. Step 6: Final answer
    x = 636,662.28

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Double scale
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1.5x scale

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.