Home / 389,569.20-584,353.80-123,350.55

Finding the Fourth Proportional to 389,569.20, 584,353.80 and 123,350.55

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Solution

The fourth proportional to 389,569.20, 584,353.80 and 123,350.55 is: 185,025.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,569.20 : 584,353.80 = 123,350.55 : x
  2. Step 2: Convert to fraction form
    389,569.20/584,353.80 = 123,350.55/x
  3. Step 3: Cross multiply
    389,569.20x = 584,353.80 × 123,350.55
  4. Step 4: Simplify right side
    389,569.20x = 72,080,362,624.59
  5. Step 5: Solve for x
    x = 72,080,362,624.59/389,569.20
  6. Step 6: Final answer
    x = 185,025.83

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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.