Home / 1,078,841.80-1,620,012.30-725,422.60

Finding the Fourth Proportional to 1,078,841.80, 1,620,012.30 and 725,422.60

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Solution

The fourth proportional to 1,078,841.80, 1,620,012.30 and 725,422.60 is: 1,089,310.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,841.80 : 1,620,012.30 = 725,422.60 : x
  2. Step 2: Convert to fraction form
    1,078,841.80/1,620,012.30 = 725,422.60/x
  3. Step 3: Cross multiply
    1,078,841.80x = 1,620,012.30 × 725,422.60
  4. Step 4: Simplify right side
    1,078,841.80x = 1,175,193,534,697.98
  5. Step 5: Solve for x
    x = 1,175,193,534,697.98/1,078,841.80
  6. Step 6: Final answer
    x = 1,089,310.35

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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.