Home / 807,529.05-1,211,853-321,161.37

Finding the Fourth Proportional to 807,529.05, 1,211,853 and 321,161.37

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Solution

The fourth proportional to 807,529.05, 1,211,853 and 321,161.37 is: 481,964.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,529.05 : 1,211,853 = 321,161.37 : x
  2. Step 2: Convert to fraction form
    807,529.05/1,211,853 = 321,161.37/x
  3. Step 3: Cross multiply
    807,529.05x = 1,211,853 × 321,161.37
  4. Step 4: Simplify right side
    807,529.05x = 389,200,369,718.61
  5. Step 5: Solve for x
    x = 389,200,369,718.61/807,529.05
  6. Step 6: Final answer
    x = 481,964.54

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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.