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Finding the Fourth Proportional to 699,763.52, 963,336.84 and 667,625.96

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Solution

The fourth proportional to 699,763.52, 963,336.84 and 667,625.96 is: 919,094.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,763.52 : 963,336.84 = 667,625.96 : x
  2. Step 2: Convert to fraction form
    699,763.52/963,336.84 = 667,625.96/x
  3. Step 3: Cross multiply
    699,763.52x = 963,336.84 × 667,625.96
  4. Step 4: Simplify right side
    699,763.52x = 643,148,682,608.37
  5. Step 5: Solve for x
    x = 643,148,682,608.37/699,763.52
  6. Step 6: Final answer
    x = 919,094.33

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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.