Home / 769,112.80-1,153,669.20-325,823.20

Finding the Fourth Proportional to 769,112.80, 1,153,669.20 and 325,823.20

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Solution

The fourth proportional to 769,112.80, 1,153,669.20 and 325,823.20 is: 488,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,112.80 : 1,153,669.20 = 325,823.20 : x
  2. Step 2: Convert to fraction form
    769,112.80/1,153,669.20 = 325,823.20/x
  3. Step 3: Cross multiply
    769,112.80x = 1,153,669.20 × 325,823.20
  4. Step 4: Simplify right side
    769,112.80x = 375,892,190,485.44
  5. Step 5: Solve for x
    x = 375,892,190,485.44/769,112.80
  6. Step 6: Final answer
    x = 488,734.80

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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.