Home / 486,005.23-670,687.64-271,145.33

Finding the Fourth Proportional to 486,005.23, 670,687.64 and 271,145.33

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Solution

The fourth proportional to 486,005.23, 670,687.64 and 271,145.33 is: 374,180.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,005.23 : 670,687.64 = 271,145.33 : x
  2. Step 2: Convert to fraction form
    486,005.23/670,687.64 = 271,145.33/x
  3. Step 3: Cross multiply
    486,005.23x = 670,687.64 × 271,145.33
  4. Step 4: Simplify right side
    486,005.23x = 181,853,821,474.72
  5. Step 5: Solve for x
    x = 181,853,821,474.72/486,005.23
  6. Step 6: Final answer
    x = 374,180.79

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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.