Home / 812,286.04-1,217,311.26-691,719.16

Finding the Fourth Proportional to 812,286.04, 1,217,311.26 and 691,719.16

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Solution

The fourth proportional to 812,286.04, 1,217,311.26 and 691,719.16 is: 1,036,626.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,286.04 : 1,217,311.26 = 691,719.16 : x
  2. Step 2: Convert to fraction form
    812,286.04/1,217,311.26 = 691,719.16/x
  3. Step 3: Cross multiply
    812,286.04x = 1,217,311.26 × 691,719.16
  4. Step 4: Simplify right side
    812,286.04x = 842,037,522,225.74
  5. Step 5: Solve for x
    x = 842,037,522,225.74/812,286.04
  6. Step 6: Final answer
    x = 1,036,626.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.