Home / 386,844.80-580,281.78-106,383.92

Finding the Fourth Proportional to 386,844.80, 580,281.78 and 106,383.92

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Solution

The fourth proportional to 386,844.80, 580,281.78 and 106,383.92 is: 159,579.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,844.80 : 580,281.78 = 106,383.92 : x
  2. Step 2: Convert to fraction form
    386,844.80/580,281.78 = 106,383.92/x
  3. Step 3: Cross multiply
    386,844.80x = 580,281.78 × 106,383.92
  4. Step 4: Simplify right side
    386,844.80x = 61,732,650,460.98
  5. Step 5: Solve for x
    x = 61,732,650,460.98/386,844.80
  6. Step 6: Final answer
    x = 159,579.89

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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.