Home / 3,992,712.80-5,989,069.20-1,152,917.60

Finding the Fourth Proportional to 3,992,712.80, 5,989,069.20 and 1,152,917.60

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Solution

The fourth proportional to 3,992,712.80, 5,989,069.20 and 1,152,917.60 is: 1,729,376.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992,712.80 : 5,989,069.20 = 1,152,917.60 : x
  2. Step 2: Convert to fraction form
    3,992,712.80/5,989,069.20 = 1,152,917.60/x
  3. Step 3: Cross multiply
    3,992,712.80x = 5,989,069.20 × 1,152,917.60
  4. Step 4: Simplify right side
    3,992,712.80x = 6,904,903,288,297.92
  5. Step 5: Solve for x
    x = 6,904,903,288,297.92/3,992,712.80
  6. Step 6: Final answer
    x = 1,729,376.40

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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.