Home / 449,539.12-620,376.17-268,356.21

Finding the Fourth Proportional to 449,539.12, 620,376.17 and 268,356.21

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Solution

The fourth proportional to 449,539.12, 620,376.17 and 268,356.21 is: 370,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,539.12 : 620,376.17 = 268,356.21 : x
  2. Step 2: Convert to fraction form
    449,539.12/620,376.17 = 268,356.21/x
  3. Step 3: Cross multiply
    449,539.12x = 620,376.17 × 268,356.21
  4. Step 4: Simplify right side
    449,539.12x = 166,481,797,755.52
  5. Step 5: Solve for x
    x = 166,481,797,755.52/449,539.12
  6. Step 6: Final answer
    x = 370,338.84

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1.5x scale

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.