Home / 776,446.03-1,071,218.21-449,580.65

Finding the Fourth Proportional to 776,446.03, 1,071,218.21 and 449,580.65

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Solution

The fourth proportional to 776,446.03, 1,071,218.21 and 449,580.65 is: 620,260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,446.03 : 1,071,218.21 = 449,580.65 : x
  2. Step 2: Convert to fraction form
    776,446.03/1,071,218.21 = 449,580.65/x
  3. Step 3: Cross multiply
    776,446.03x = 1,071,218.21 × 449,580.65
  4. Step 4: Simplify right side
    776,446.03x = 481,598,979,573.78
  5. Step 5: Solve for x
    x = 481,598,979,573.78/776,446.03
  6. Step 6: Final answer
    x = 620,260.73

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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.