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Finding the Fourth Proportional to 449,543.59, 620,382.31 and 268,360.65

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Solution

The fourth proportional to 449,543.59, 620,382.31 and 268,360.65 is: 370,344.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,543.59 : 620,382.31 = 268,360.65 : x
  2. Step 2: Convert to fraction form
    449,543.59/620,382.31 = 268,360.65/x
  3. Step 3: Cross multiply
    449,543.59x = 620,382.31 × 268,360.65
  4. Step 4: Simplify right side
    449,543.59x = 166,486,199,289.20
  5. Step 5: Solve for x
    x = 166,486,199,289.20/449,543.59
  6. Step 6: Final answer
    x = 370,344.95

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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.