Home / 481,739.31-722,728.85-144,785.39

Finding the Fourth Proportional to 481,739.31, 722,728.85 and 144,785.39

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Solution

The fourth proportional to 481,739.31, 722,728.85 and 144,785.39 is: 217,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,739.31 : 722,728.85 = 144,785.39 : x
  2. Step 2: Convert to fraction form
    481,739.31/722,728.85 = 144,785.39/x
  3. Step 3: Cross multiply
    481,739.31x = 722,728.85 × 144,785.39
  4. Step 4: Simplify right side
    481,739.31x = 104,640,574,073.93
  5. Step 5: Solve for x
    x = 104,640,574,073.93/481,739.31
  6. Step 6: Final answer
    x = 217,214.11

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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.