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Finding the Fourth Proportional to 793,978.56, 1,190,874.88 and 225,409.60

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Solution

The fourth proportional to 793,978.56, 1,190,874.88 and 225,409.60 is: 338,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,978.56 : 1,190,874.88 = 225,409.60 : x
  2. Step 2: Convert to fraction form
    793,978.56/1,190,874.88 = 225,409.60/x
  3. Step 3: Cross multiply
    793,978.56x = 1,190,874.88 × 225,409.60
  4. Step 4: Simplify right side
    793,978.56x = 268,434,630,350.85
  5. Step 5: Solve for x
    x = 268,434,630,350.85/793,978.56
  6. Step 6: Final answer
    x = 338,088.01

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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.