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Finding the Fourth Proportional to 579,281.20, 868,662.60 and 263,575.60

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Solution

The fourth proportional to 579,281.20, 868,662.60 and 263,575.60 is: 395,245.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,281.20 : 868,662.60 = 263,575.60 : x
  2. Step 2: Convert to fraction form
    579,281.20/868,662.60 = 263,575.60/x
  3. Step 3: Cross multiply
    579,281.20x = 868,662.60 × 263,575.60
  4. Step 4: Simplify right side
    579,281.20x = 228,958,265,992.56
  5. Step 5: Solve for x
    x = 228,958,265,992.56/579,281.20
  6. Step 6: Final answer
    x = 395,245.46

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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.