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Finding the Fourth Proportional to 378,010.20, 567,015.30 and 347,829.60

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Solution

The fourth proportional to 378,010.20, 567,015.30 and 347,829.60 is: 521,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,010.20 : 567,015.30 = 347,829.60 : x
  2. Step 2: Convert to fraction form
    378,010.20/567,015.30 = 347,829.60/x
  3. Step 3: Cross multiply
    378,010.20x = 567,015.30 × 347,829.60
  4. Step 4: Simplify right side
    378,010.20x = 197,224,704,992.88
  5. Step 5: Solve for x
    x = 197,224,704,992.88/378,010.20
  6. Step 6: Final answer
    x = 521,744.40

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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.