Home / 486,000.10-670,680.56-271,140.21

Finding the Fourth Proportional to 486,000.10, 670,680.56 and 271,140.21

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Solution

The fourth proportional to 486,000.10, 670,680.56 and 271,140.21 is: 374,173.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,000.10 : 670,680.56 = 271,140.21 : x
  2. Step 2: Convert to fraction form
    486,000.10/670,680.56 = 271,140.21/x
  3. Step 3: Cross multiply
    486,000.10x = 670,680.56 × 271,140.21
  4. Step 4: Simplify right side
    486,000.10x = 181,848,467,881.32
  5. Step 5: Solve for x
    x = 181,848,467,881.32/486,000.10
  6. Step 6: Final answer
    x = 374,173.73

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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.