Home / 389,712.20-584,568.30-366,092.60

Finding the Fourth Proportional to 389,712.20, 584,568.30 and 366,092.60

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Solution

The fourth proportional to 389,712.20, 584,568.30 and 366,092.60 is: 549,138.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,712.20 : 584,568.30 = 366,092.60 : x
  2. Step 2: Convert to fraction form
    389,712.20/584,568.30 = 366,092.60/x
  3. Step 3: Cross multiply
    389,712.20x = 584,568.30 × 366,092.60
  4. Step 4: Simplify right side
    389,712.20x = 214,006,128,824.58
  5. Step 5: Solve for x
    x = 214,006,128,824.58/389,712.20
  6. Step 6: Final answer
    x = 549,138.90

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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.