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Finding the Fourth Proportional to 486,540.30, 729,810.45 and 352,793.10

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Solution

The fourth proportional to 486,540.30, 729,810.45 and 352,793.10 is: 529,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,540.30 : 729,810.45 = 352,793.10 : x
  2. Step 2: Convert to fraction form
    486,540.30/729,810.45 = 352,793.10/x
  3. Step 3: Cross multiply
    486,540.30x = 729,810.45 × 352,793.10
  4. Step 4: Simplify right side
    486,540.30x = 257,472,091,067.90
  5. Step 5: Solve for x
    x = 257,472,091,067.90/486,540.30
  6. Step 6: Final answer
    x = 529,189.65

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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.