Home / 1,247,742.26-1,721,889.51-674,782.43

Finding the Fourth Proportional to 1,247,742.26, 1,721,889.51 and 674,782.43

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Solution

The fourth proportional to 1,247,742.26, 1,721,889.51 and 674,782.43 is: 931,202.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,742.26 : 1,721,889.51 = 674,782.43 : x
  2. Step 2: Convert to fraction form
    1,247,742.26/1,721,889.51 = 674,782.43/x
  3. Step 3: Cross multiply
    1,247,742.26x = 1,721,889.51 × 674,782.43
  4. Step 4: Simplify right side
    1,247,742.26x = 1,161,900,787,749.31
  5. Step 5: Solve for x
    x = 1,161,900,787,749.31/1,247,742.26
  6. Step 6: Final answer
    x = 931,202.56

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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.