Home / 769,629.60-1,152,694.80-395,215.20

Finding the Fourth Proportional to 769,629.60, 1,152,694.80 and 395,215.20

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Solution

The fourth proportional to 769,629.60, 1,152,694.80 and 395,215.20 is: 591,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,629.60 : 1,152,694.80 = 395,215.20 : x
  2. Step 2: Convert to fraction form
    769,629.60/1,152,694.80 = 395,215.20/x
  3. Step 3: Cross multiply
    769,629.60x = 1,152,694.80 × 395,215.20
  4. Step 4: Simplify right side
    769,629.60x = 455,562,505,920.96
  5. Step 5: Solve for x
    x = 455,562,505,920.96/769,629.60
  6. Step 6: Final answer
    x = 591,924.36

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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.