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Finding the Fourth Proportional to 415,911.60, 622,992.60 and 345,927.60

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Solution

The fourth proportional to 415,911.60, 622,992.60 and 345,927.60 is: 518,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,911.60 : 622,992.60 = 345,927.60 : x
  2. Step 2: Convert to fraction form
    415,911.60/622,992.60 = 345,927.60/x
  3. Step 3: Cross multiply
    415,911.60x = 622,992.60 × 345,927.60
  4. Step 4: Simplify right side
    415,911.60x = 215,510,334,935.76
  5. Step 5: Solve for x
    x = 215,510,334,935.76/415,911.60
  6. Step 6: Final answer
    x = 518,163.80

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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.