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Finding the Fourth Proportional to 700,633.82, 966,877.63 and 394,713.88

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Solution

The fourth proportional to 700,633.82, 966,877.63 and 394,713.88 is: 544,706.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,633.82 : 966,877.63 = 394,713.88 : x
  2. Step 2: Convert to fraction form
    700,633.82/966,877.63 = 394,713.88/x
  3. Step 3: Cross multiply
    700,633.82x = 966,877.63 × 394,713.88
  4. Step 4: Simplify right side
    700,633.82x = 381,640,017,418.53
  5. Step 5: Solve for x
    x = 381,640,017,418.53/700,633.82
  6. Step 6: Final answer
    x = 544,706.81

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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.