Home / 1,078,835.80-1,620,003.30-725,416.60

Finding the Fourth Proportional to 1,078,835.80, 1,620,003.30 and 725,416.60

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Solution

The fourth proportional to 1,078,835.80, 1,620,003.30 and 725,416.60 is: 1,089,301.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,835.80 : 1,620,003.30 = 725,416.60 : x
  2. Step 2: Convert to fraction form
    1,078,835.80/1,620,003.30 = 725,416.60/x
  3. Step 3: Cross multiply
    1,078,835.80x = 1,620,003.30 × 725,416.60
  4. Step 4: Simplify right side
    1,078,835.80x = 1,175,177,285,874.78
  5. Step 5: Solve for x
    x = 1,175,177,285,874.78/1,078,835.80
  6. Step 6: Final answer
    x = 1,089,301.34

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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.