Home / 807,824.41-1,211,982.72-381,687.46

Finding the Fourth Proportional to 807,824.41, 1,211,982.72 and 381,687.46

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Solution

The fourth proportional to 807,824.41, 1,211,982.72 and 381,687.46 is: 572,647.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,824.41 : 1,211,982.72 = 381,687.46 : x
  2. Step 2: Convert to fraction form
    807,824.41/1,211,982.72 = 381,687.46/x
  3. Step 3: Cross multiply
    807,824.41x = 1,211,982.72 × 381,687.46
  4. Step 4: Simplify right side
    807,824.41x = 462,598,605,960.69
  5. Step 5: Solve for x
    x = 462,598,605,960.69/807,824.41
  6. Step 6: Final answer
    x = 572,647.47

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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.