Home / 394,780.02-544,789.64-222,698.36

Finding the Fourth Proportional to 394,780.02, 544,789.64 and 222,698.36

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Solution

The fourth proportional to 394,780.02, 544,789.64 and 222,698.36 is: 307,319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,780.02 : 544,789.64 = 222,698.36 : x
  2. Step 2: Convert to fraction form
    394,780.02/544,789.64 = 222,698.36/x
  3. Step 3: Cross multiply
    394,780.02x = 544,789.64 × 222,698.36
  4. Step 4: Simplify right side
    394,780.02x = 121,323,755,535.55
  5. Step 5: Solve for x
    x = 121,323,755,535.55/394,780.02
  6. Step 6: Final answer
    x = 307,319.90

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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.