Home / 394,905.08-544,795.90-231,478.74

Finding the Fourth Proportional to 394,905.08, 544,795.90 and 231,478.74

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Solution

The fourth proportional to 394,905.08, 544,795.90 and 231,478.74 is: 319,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,905.08 : 544,795.90 = 231,478.74 : x
  2. Step 2: Convert to fraction form
    394,905.08/544,795.90 = 231,478.74/x
  3. Step 3: Cross multiply
    394,905.08x = 544,795.90 × 231,478.74
  4. Step 4: Simplify right side
    394,905.08x = 126,108,668,489.17
  5. Step 5: Solve for x
    x = 126,108,668,489.17/394,905.08
  6. Step 6: Final answer
    x = 319,339.19

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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.