Home / 792,478.40-1,188,861.60-259,851.20

Finding the Fourth Proportional to 792,478.40, 1,188,861.60 and 259,851.20

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Solution

The fourth proportional to 792,478.40, 1,188,861.60 and 259,851.20 is: 389,824.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,478.40 : 1,188,861.60 = 259,851.20 : x
  2. Step 2: Convert to fraction form
    792,478.40/1,188,861.60 = 259,851.20/x
  3. Step 3: Cross multiply
    792,478.40x = 1,188,861.60 × 259,851.20
  4. Step 4: Simplify right side
    792,478.40x = 308,927,113,393.92
  5. Step 5: Solve for x
    x = 308,927,113,393.92/792,478.40
  6. Step 6: Final answer
    x = 389,824.02

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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.