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Finding the Fourth Proportional to 641,003.54, 960,033.13 and 320,170.64

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Solution

The fourth proportional to 641,003.54, 960,033.13 and 320,170.64 is: 479,520.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,003.54 : 960,033.13 = 320,170.64 : x
  2. Step 2: Convert to fraction form
    641,003.54/960,033.13 = 320,170.64/x
  3. Step 3: Cross multiply
    641,003.54x = 960,033.13 × 320,170.64
  4. Step 4: Simplify right side
    641,003.54x = 307,374,416,052.71
  5. Step 5: Solve for x
    x = 307,374,416,052.71/641,003.54
  6. Step 6: Final answer
    x = 479,520.63

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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.