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Finding the Fourth Proportional to 627,362.94, 940,515.42 and 272,109.42

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Solution

The fourth proportional to 627,362.94, 940,515.42 and 272,109.42 is: 407,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,362.94 : 940,515.42 = 272,109.42 : x
  2. Step 2: Convert to fraction form
    627,362.94/940,515.42 = 272,109.42/x
  3. Step 3: Cross multiply
    627,362.94x = 940,515.42 × 272,109.42
  4. Step 4: Simplify right side
    627,362.94x = 255,923,105,437.26
  5. Step 5: Solve for x
    x = 255,923,105,437.26/627,362.94
  6. Step 6: Final answer
    x = 407,934.69

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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.