Home / 1,263,154.78-1,743,154.05-682,378.12

Finding the Fourth Proportional to 1,263,154.78, 1,743,154.05 and 682,378.12

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Solution

The fourth proportional to 1,263,154.78, 1,743,154.05 and 682,378.12 is: 941,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,154.78 : 1,743,154.05 = 682,378.12 : x
  2. Step 2: Convert to fraction form
    1,263,154.78/1,743,154.05 = 682,378.12/x
  3. Step 3: Cross multiply
    1,263,154.78x = 1,743,154.05 × 682,378.12
  4. Step 4: Simplify right side
    1,263,154.78x = 1,189,490,183,509.39
  5. Step 5: Solve for x
    x = 1,189,490,183,509.39/1,263,154.78
  6. Step 6: Final answer
    x = 941,682.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.