Home / 817,622.81-1,226,515.97-312,608.67

Finding the Fourth Proportional to 817,622.81, 1,226,515.97 and 312,608.67

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Solution

The fourth proportional to 817,622.81, 1,226,515.97 and 312,608.67 is: 468,944.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,622.81 : 1,226,515.97 = 312,608.67 : x
  2. Step 2: Convert to fraction form
    817,622.81/1,226,515.97 = 312,608.67/x
  3. Step 3: Cross multiply
    817,622.81x = 1,226,515.97 × 312,608.67
  4. Step 4: Simplify right side
    817,622.81x = 383,419,522,297.55
  5. Step 5: Solve for x
    x = 383,419,522,297.55/817,622.81
  6. Step 6: Final answer
    x = 468,944.26

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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.