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Finding the Fourth Proportional to 432,310.80, 648,850.20 and 254,595.60

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Solution

The fourth proportional to 432,310.80, 648,850.20 and 254,595.60 is: 382,119.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,310.80 : 648,850.20 = 254,595.60 : x
  2. Step 2: Convert to fraction form
    432,310.80/648,850.20 = 254,595.60/x
  3. Step 3: Cross multiply
    432,310.80x = 648,850.20 × 254,595.60
  4. Step 4: Simplify right side
    432,310.80x = 165,194,405,979.12
  5. Step 5: Solve for x
    x = 165,194,405,979.12/432,310.80
  6. Step 6: Final answer
    x = 382,119.54

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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.