Home / 791,689.71-1,187,535.78-192,647.33

Finding the Fourth Proportional to 791,689.71, 1,187,535.78 and 192,647.33

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Solution

The fourth proportional to 791,689.71, 1,187,535.78 and 192,647.33 is: 288,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,689.71 : 1,187,535.78 = 192,647.33 : x
  2. Step 2: Convert to fraction form
    791,689.71/1,187,535.78 = 192,647.33/x
  3. Step 3: Cross multiply
    791,689.71x = 1,187,535.78 × 192,647.33
  4. Step 4: Simplify right side
    791,689.71x = 228,775,597,296.47
  5. Step 5: Solve for x
    x = 228,775,597,296.47/791,689.71
  6. Step 6: Final answer
    x = 288,971.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.