Home / 486,005-670,687.32-271,145.12

Finding the Fourth Proportional to 486,005, 670,687.32 and 271,145.12

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Solution

The fourth proportional to 486,005, 670,687.32 and 271,145.12 is: 374,180.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,005 : 670,687.32 = 271,145.12 : x
  2. Step 2: Convert to fraction form
    486,005/670,687.32 = 271,145.12/x
  3. Step 3: Cross multiply
    486,005x = 670,687.32 × 271,145.12
  4. Step 4: Simplify right side
    486,005x = 181,853,593,863.88
  5. Step 5: Solve for x
    x = 181,853,593,863.88/486,005
  6. Step 6: Final answer
    x = 374,180.50

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1.5x scale

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.