Home / 1,247,738.64-1,721,884.51-674,778.81

Finding the Fourth Proportional to 1,247,738.64, 1,721,884.51 and 674,778.81

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Solution

The fourth proportional to 1,247,738.64, 1,721,884.51 and 674,778.81 is: 931,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,738.64 : 1,721,884.51 = 674,778.81 : x
  2. Step 2: Convert to fraction form
    1,247,738.64/1,721,884.51 = 674,778.81/x
  3. Step 3: Cross multiply
    1,247,738.64x = 1,721,884.51 × 674,778.81
  4. Step 4: Simplify right side
    1,247,738.64x = 1,161,891,175,383.48
  5. Step 5: Solve for x
    x = 1,161,891,175,383.48/1,247,738.64
  6. Step 6: Final answer
    x = 931,197.56

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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.