Home / 1,313,105.38-1,812,224.74-769,697.76

Finding the Fourth Proportional to 1,313,105.38, 1,812,224.74 and 769,697.76

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Solution

The fourth proportional to 1,313,105.38, 1,812,224.74 and 769,697.76 is: 1,062,264.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,105.38 : 1,812,224.74 = 769,697.76 : x
  2. Step 2: Convert to fraction form
    1,313,105.38/1,812,224.74 = 769,697.76/x
  3. Step 3: Cross multiply
    1,313,105.38x = 1,812,224.74 × 769,697.76
  4. Step 4: Simplify right side
    1,313,105.38x = 1,394,865,322,994.58
  5. Step 5: Solve for x
    x = 1,394,865,322,994.58/1,313,105.38
  6. Step 6: Final answer
    x = 1,062,264.57

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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.