Home / 790,660.81-1,091,110.44-428,084.61

Finding the Fourth Proportional to 790,660.81, 1,091,110.44 and 428,084.61

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Solution

The fourth proportional to 790,660.81, 1,091,110.44 and 428,084.61 is: 590,755.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,660.81 : 1,091,110.44 = 428,084.61 : x
  2. Step 2: Convert to fraction form
    790,660.81/1,091,110.44 = 428,084.61/x
  3. Step 3: Cross multiply
    790,660.81x = 1,091,110.44 × 428,084.61
  4. Step 4: Simplify right side
    790,660.81x = 467,087,587,174.33
  5. Step 5: Solve for x
    x = 467,087,587,174.33/790,660.81
  6. Step 6: Final answer
    x = 590,755.96

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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.