Home / 486,005.74-670,685.27-271,145.34

Finding the Fourth Proportional to 486,005.74, 670,685.27 and 271,145.34

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Solution

The fourth proportional to 486,005.74, 670,685.27 and 271,145.34 is: 374,179.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,005.74 : 670,685.27 = 271,145.34 : x
  2. Step 2: Convert to fraction form
    486,005.74/670,685.27 = 271,145.34/x
  3. Step 3: Cross multiply
    486,005.74x = 670,685.27 × 271,145.34
  4. Step 4: Simplify right side
    486,005.74x = 181,853,184,211.42
  5. Step 5: Solve for x
    x = 181,853,184,211.42/486,005.74
  6. Step 6: Final answer
    x = 374,179.09

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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.