Home / 387,677.20-582,811.80-336,355.60

Finding the Fourth Proportional to 387,677.20, 582,811.80 and 336,355.60

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Solution

The fourth proportional to 387,677.20, 582,811.80 and 336,355.60 is: 505,657.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,677.20 : 582,811.80 = 336,355.60 : x
  2. Step 2: Convert to fraction form
    387,677.20/582,811.80 = 336,355.60/x
  3. Step 3: Cross multiply
    387,677.20x = 582,811.80 × 336,355.60
  4. Step 4: Simplify right side
    387,677.20x = 196,032,012,676.08
  5. Step 5: Solve for x
    x = 196,032,012,676.08/387,677.20
  6. Step 6: Final answer
    x = 505,657.83

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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.