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Finding the Fourth Proportional to 435,785.56, 601,381.79 and 239,556.61

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Solution

The fourth proportional to 435,785.56, 601,381.79 and 239,556.61 is: 330,586.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,785.56 : 601,381.79 = 239,556.61 : x
  2. Step 2: Convert to fraction form
    435,785.56/601,381.79 = 239,556.61/x
  3. Step 3: Cross multiply
    435,785.56x = 601,381.79 × 239,556.61
  4. Step 4: Simplify right side
    435,785.56x = 144,064,981,345.15
  5. Step 5: Solve for x
    x = 144,064,981,345.15/435,785.56
  6. Step 6: Final answer
    x = 330,586.87

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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.