Home / 325,839.40-488,759.10-320,590.60

Finding the Fourth Proportional to 325,839.40, 488,759.10 and 320,590.60

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Solution

The fourth proportional to 325,839.40, 488,759.10 and 320,590.60 is: 480,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,839.40 : 488,759.10 = 320,590.60 : x
  2. Step 2: Convert to fraction form
    325,839.40/488,759.10 = 320,590.60/x
  3. Step 3: Cross multiply
    325,839.40x = 488,759.10 × 320,590.60
  4. Step 4: Simplify right side
    325,839.40x = 156,691,573,124.46
  5. Step 5: Solve for x
    x = 156,691,573,124.46/325,839.40
  6. Step 6: Final answer
    x = 480,885.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.