Home / 389,630.20-583,789.20-366,010.60

Finding the Fourth Proportional to 389,630.20, 583,789.20 and 366,010.60

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Solution

The fourth proportional to 389,630.20, 583,789.20 and 366,010.60 is: 548,399.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,630.20 : 583,789.20 = 366,010.60 : x
  2. Step 2: Convert to fraction form
    389,630.20/583,789.20 = 366,010.60/x
  3. Step 3: Cross multiply
    389,630.20x = 583,789.20 × 366,010.60
  4. Step 4: Simplify right side
    389,630.20x = 213,673,035,365.52
  5. Step 5: Solve for x
    x = 213,673,035,365.52/389,630.20
  6. Step 6: Final answer
    x = 548,399.57

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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.