Home / 776,441.42-1,071,211.82-449,576.01

Finding the Fourth Proportional to 776,441.42, 1,071,211.82 and 449,576.01

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Solution

The fourth proportional to 776,441.42, 1,071,211.82 and 449,576.01 is: 620,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,441.42 : 1,071,211.82 = 449,576.01 : x
  2. Step 2: Convert to fraction form
    776,441.42/1,071,211.82 = 449,576.01/x
  3. Step 3: Cross multiply
    776,441.42x = 1,071,211.82 × 449,576.01
  4. Step 4: Simplify right side
    776,441.42x = 481,591,133,652.56
  5. Step 5: Solve for x
    x = 481,591,133,652.56/776,441.42
  6. Step 6: Final answer
    x = 620,254.31

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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.