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Finding the Fourth Proportional to 576,685.57, 795,810.66 and 318,556.96

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Solution

The fourth proportional to 576,685.57, 795,810.66 and 318,556.96 is: 439,600.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,685.57 : 795,810.66 = 318,556.96 : x
  2. Step 2: Convert to fraction form
    576,685.57/795,810.66 = 318,556.96/x
  3. Step 3: Cross multiply
    576,685.57x = 795,810.66 × 318,556.96
  4. Step 4: Simplify right side
    576,685.57x = 253,511,027,869.33
  5. Step 5: Solve for x
    x = 253,511,027,869.33/576,685.57
  6. Step 6: Final answer
    x = 439,600.09

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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.