Home / 810,125.70-1,215,217.71-304,640.34

Finding the Fourth Proportional to 810,125.70, 1,215,217.71 and 304,640.34

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Solution

The fourth proportional to 810,125.70, 1,215,217.71 and 304,640.34 is: 456,971.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,125.70 : 1,215,217.71 = 304,640.34 : x
  2. Step 2: Convert to fraction form
    810,125.70/1,215,217.71 = 304,640.34/x
  3. Step 3: Cross multiply
    810,125.70x = 1,215,217.71 × 304,640.34
  4. Step 4: Simplify right side
    810,125.70x = 370,204,336,348.42
  5. Step 5: Solve for x
    x = 370,204,336,348.42/810,125.70
  6. Step 6: Final answer
    x = 456,971.48

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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.