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Finding the Fourth Proportional to 536,490.40, 803,569.20 and 325,760.80

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Solution

The fourth proportional to 536,490.40, 803,569.20 and 325,760.80 is: 487,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,490.40 : 803,569.20 = 325,760.80 : x
  2. Step 2: Convert to fraction form
    536,490.40/803,569.20 = 325,760.80/x
  3. Step 3: Cross multiply
    536,490.40x = 803,569.20 × 325,760.80
  4. Step 4: Simplify right side
    536,490.40x = 261,771,345,447.36
  5. Step 5: Solve for x
    x = 261,771,345,447.36/536,490.40
  6. Step 6: Final answer
    x = 487,932.95

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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.