Home / 486,072.12-670,781.38-271,221.24

Finding the Fourth Proportional to 486,072.12, 670,781.38 and 271,221.24

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Solution

The fourth proportional to 486,072.12, 670,781.38 and 271,221.24 is: 374,286.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,072.12 : 670,781.38 = 271,221.24 : x
  2. Step 2: Convert to fraction form
    486,072.12/670,781.38 = 271,221.24/x
  3. Step 3: Cross multiply
    486,072.12x = 670,781.38 × 271,221.24
  4. Step 4: Simplify right side
    486,072.12x = 181,930,157,652.51
  5. Step 5: Solve for x
    x = 181,930,157,652.51/486,072.12
  6. Step 6: Final answer
    x = 374,286.35

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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.