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Finding the Fourth Proportional to 538,065.47, 806,544.61 and 238,687.04

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Solution

The fourth proportional to 538,065.47, 806,544.61 and 238,687.04 is: 357,784.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,065.47 : 806,544.61 = 238,687.04 : x
  2. Step 2: Convert to fraction form
    538,065.47/806,544.61 = 238,687.04/x
  3. Step 3: Cross multiply
    538,065.47x = 806,544.61 × 238,687.04
  4. Step 4: Simplify right side
    538,065.47x = 192,511,740,959.41
  5. Step 5: Solve for x
    x = 192,511,740,959.41/538,065.47
  6. Step 6: Final answer
    x = 357,784.98

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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.