Home / 1,042,190.26-1,561,262.57-768,138.20

Finding the Fourth Proportional to 1,042,190.26, 1,561,262.57 and 768,138.20

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Solution

The fourth proportional to 1,042,190.26, 1,561,262.57 and 768,138.20 is: 1,150,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,190.26 : 1,561,262.57 = 768,138.20 : x
  2. Step 2: Convert to fraction form
    1,042,190.26/1,561,262.57 = 768,138.20/x
  3. Step 3: Cross multiply
    1,042,190.26x = 1,561,262.57 × 768,138.20
  4. Step 4: Simplify right side
    1,042,190.26x = 1,199,265,420,247.17
  5. Step 5: Solve for x
    x = 1,199,265,420,247.17/1,042,190.26
  6. Step 6: Final answer
    x = 1,150,716.40

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Double scale
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1.5x scale

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.