Home / 892,129.72-1,231,105.99-484,222.88

Finding the Fourth Proportional to 892,129.72, 1,231,105.99 and 484,222.88

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Solution

The fourth proportional to 892,129.72, 1,231,105.99 and 484,222.88 is: 668,209.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,129.72 : 1,231,105.99 = 484,222.88 : x
  2. Step 2: Convert to fraction form
    892,129.72/1,231,105.99 = 484,222.88/x
  3. Step 3: Cross multiply
    892,129.72x = 1,231,105.99 × 484,222.88
  4. Step 4: Simplify right side
    892,129.72x = 596,129,688,063.05
  5. Step 5: Solve for x
    x = 596,129,688,063.05/892,129.72
  6. Step 6: Final answer
    x = 668,209.65

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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.