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Finding the Fourth Proportional to 449,539.39, 620,376.55 and 268,356.52

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Solution

The fourth proportional to 449,539.39, 620,376.55 and 268,356.52 is: 370,339.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,539.39 : 620,376.55 = 268,356.52 : x
  2. Step 2: Convert to fraction form
    449,539.39/620,376.55 = 268,356.52/x
  3. Step 3: Cross multiply
    449,539.39x = 620,376.55 × 268,356.52
  4. Step 4: Simplify right side
    449,539.39x = 166,482,091,350.82
  5. Step 5: Solve for x
    x = 166,482,091,350.82/449,539.39
  6. Step 6: Final answer
    x = 370,339.28

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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.