Home / 1,279,078.89-1,765,082.61-706,106.76

Finding the Fourth Proportional to 1,279,078.89, 1,765,082.61 and 706,106.76

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Solution

The fourth proportional to 1,279,078.89, 1,765,082.61 and 706,106.76 is: 974,401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,078.89 : 1,765,082.61 = 706,106.76 : x
  2. Step 2: Convert to fraction form
    1,279,078.89/1,765,082.61 = 706,106.76/x
  3. Step 3: Cross multiply
    1,279,078.89x = 1,765,082.61 × 706,106.76
  4. Step 4: Simplify right side
    1,279,078.89x = 1,246,336,762,879.44
  5. Step 5: Solve for x
    x = 1,246,336,762,879.44/1,279,078.89
  6. Step 6: Final answer
    x = 974,401.79

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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.