Home / 1,224,716.92-1,690,166.97-680,861.72

Finding the Fourth Proportional to 1,224,716.92, 1,690,166.97 and 680,861.72

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Solution

The fourth proportional to 1,224,716.92, 1,690,166.97 and 680,861.72 is: 939,621.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,716.92 : 1,690,166.97 = 680,861.72 : x
  2. Step 2: Convert to fraction form
    1,224,716.92/1,690,166.97 = 680,861.72/x
  3. Step 3: Cross multiply
    1,224,716.92x = 1,690,166.97 × 680,861.72
  4. Step 4: Simplify right side
    1,224,716.92x = 1,150,769,994,506.81
  5. Step 5: Solve for x
    x = 1,150,769,994,506.81/1,224,716.92
  6. Step 6: Final answer
    x = 939,621.21

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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.