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Finding the Fourth Proportional to 389,460.60, 584,190.90 and 323,850.60

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Solution

The fourth proportional to 389,460.60, 584,190.90 and 323,850.60 is: 485,775.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,460.60 : 584,190.90 = 323,850.60 : x
  2. Step 2: Convert to fraction form
    389,460.60/584,190.90 = 323,850.60/x
  3. Step 3: Cross multiply
    389,460.60x = 584,190.90 × 323,850.60
  4. Step 4: Simplify right side
    389,460.60x = 189,190,573,479.54
  5. Step 5: Solve for x
    x = 189,190,573,479.54/389,460.60
  6. Step 6: Final answer
    x = 485,775.90

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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.