Home / 621,825.20-933,121.80-247,809.20

Finding the Fourth Proportional to 621,825.20, 933,121.80 and 247,809.20

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Solution

The fourth proportional to 621,825.20, 933,121.80 and 247,809.20 is: 371,866.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,825.20 : 933,121.80 = 247,809.20 : x
  2. Step 2: Convert to fraction form
    621,825.20/933,121.80 = 247,809.20/x
  3. Step 3: Cross multiply
    621,825.20x = 933,121.80 × 247,809.20
  4. Step 4: Simplify right side
    621,825.20x = 231,236,166,760.56
  5. Step 5: Solve for x
    x = 231,236,166,760.56/621,825.20
  6. Step 6: Final answer
    x = 371,866.83

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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.