Home / 1,295,738.57-1,788,122.09-722,815.85

Finding the Fourth Proportional to 1,295,738.57, 1,788,122.09 and 722,815.85

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Solution

The fourth proportional to 1,295,738.57, 1,788,122.09 and 722,815.85 is: 997,487.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,738.57 : 1,788,122.09 = 722,815.85 : x
  2. Step 2: Convert to fraction form
    1,295,738.57/1,788,122.09 = 722,815.85/x
  3. Step 3: Cross multiply
    1,295,738.57x = 1,788,122.09 × 722,815.85
  4. Step 4: Simplify right side
    1,295,738.57x = 1,292,482,981,253.56
  5. Step 5: Solve for x
    x = 1,292,482,981,253.56/1,295,738.57
  6. Step 6: Final answer
    x = 997,487.47

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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.