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Finding the Fourth Proportional to 807,906.30, 1,211,890.09 and 302,414.05

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Solution

The fourth proportional to 807,906.30, 1,211,890.09 and 302,414.05 is: 453,632.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,906.30 : 1,211,890.09 = 302,414.05 : x
  2. Step 2: Convert to fraction form
    807,906.30/1,211,890.09 = 302,414.05/x
  3. Step 3: Cross multiply
    807,906.30x = 1,211,890.09 × 302,414.05
  4. Step 4: Simplify right side
    807,906.30x = 366,492,590,271.77
  5. Step 5: Solve for x
    x = 366,492,590,271.77/807,906.30
  6. Step 6: Final answer
    x = 453,632.54

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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.