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Finding the Fourth Proportional to 700,006.55, 965,958.93 and 394,067.12

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Solution

The fourth proportional to 700,006.55, 965,958.93 and 394,067.12 is: 543,784.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,006.55 : 965,958.93 = 394,067.12 : x
  2. Step 2: Convert to fraction form
    700,006.55/965,958.93 = 394,067.12/x
  3. Step 3: Cross multiply
    700,006.55x = 965,958.93 × 394,067.12
  4. Step 4: Simplify right side
    700,006.55x = 380,652,648,753.59
  5. Step 5: Solve for x
    x = 380,652,648,753.59/700,006.55
  6. Step 6: Final answer
    x = 543,784.41

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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.