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Finding the Fourth Proportional to 536,540.40, 803,644.20 and 325,810.80

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Solution

The fourth proportional to 536,540.40, 803,644.20 and 325,810.80 is: 488,007.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,540.40 : 803,644.20 = 325,810.80 : x
  2. Step 2: Convert to fraction form
    536,540.40/803,644.20 = 325,810.80/x
  3. Step 3: Cross multiply
    536,540.40x = 803,644.20 × 325,810.80
  4. Step 4: Simplify right side
    536,540.40x = 261,835,959,717.36
  5. Step 5: Solve for x
    x = 261,835,959,717.36/536,540.40
  6. Step 6: Final answer
    x = 488,007.91

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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.