Home / 3,420,538.20-5,127,599.70-1,292,052.60

Finding the Fourth Proportional to 3,420,538.20, 5,127,599.70 and 1,292,052.60

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Solution

The fourth proportional to 3,420,538.20, 5,127,599.70 and 1,292,052.60 is: 1,936,867.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420,538.20 : 5,127,599.70 = 1,292,052.60 : x
  2. Step 2: Convert to fraction form
    3,420,538.20/5,127,599.70 = 1,292,052.60/x
  3. Step 3: Cross multiply
    3,420,538.20x = 5,127,599.70 × 1,292,052.60
  4. Step 4: Simplify right side
    3,420,538.20x = 6,625,128,524,144.22
  5. Step 5: Solve for x
    x = 6,625,128,524,144.22/3,420,538.20
  6. Step 6: Final answer
    x = 1,936,867.28

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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.