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Finding the Fourth Proportional to 627,081.47, 940,641.71 and 298,374.23

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Solution

The fourth proportional to 627,081.47, 940,641.71 and 298,374.23 is: 447,570.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,081.47 : 940,641.71 = 298,374.23 : x
  2. Step 2: Convert to fraction form
    627,081.47/940,641.71 = 298,374.23/x
  3. Step 3: Cross multiply
    627,081.47x = 940,641.71 × 298,374.23
  4. Step 4: Simplify right side
    627,081.47x = 280,663,239,732.05
  5. Step 5: Solve for x
    x = 280,663,239,732.05/627,081.47
  6. Step 6: Final answer
    x = 447,570.62

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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.