Home / 840,949.22-1,261,590-308,475.20

Finding the Fourth Proportional to 840,949.22, 1,261,590 and 308,475.20

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Solution

The fourth proportional to 840,949.22, 1,261,590 and 308,475.20 is: 462,773.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,949.22 : 1,261,590 = 308,475.20 : x
  2. Step 2: Convert to fraction form
    840,949.22/1,261,590 = 308,475.20/x
  3. Step 3: Cross multiply
    840,949.22x = 1,261,590 × 308,475.20
  4. Step 4: Simplify right side
    840,949.22x = 389,169,227,568
  5. Step 5: Solve for x
    x = 389,169,227,568/840,949.22
  6. Step 6: Final answer
    x = 462,773.75

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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.