Home / 851,286.20-1,174,718.08-488,659.73

Finding the Fourth Proportional to 851,286.20, 1,174,718.08 and 488,659.73

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Solution

The fourth proportional to 851,286.20, 1,174,718.08 and 488,659.73 is: 674,317.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,286.20 : 1,174,718.08 = 488,659.73 : x
  2. Step 2: Convert to fraction form
    851,286.20/1,174,718.08 = 488,659.73/x
  3. Step 3: Cross multiply
    851,286.20x = 1,174,718.08 × 488,659.73
  4. Step 4: Simplify right side
    851,286.20x = 574,037,413,925.33
  5. Step 5: Solve for x
    x = 574,037,413,925.33/851,286.20
  6. Step 6: Final answer
    x = 674,317.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.