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Finding the Fourth Proportional to 652,504.82, 978,440.79 and 382,721.12

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Solution

The fourth proportional to 652,504.82, 978,440.79 and 382,721.12 is: 573,896.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,504.82 : 978,440.79 = 382,721.12 : x
  2. Step 2: Convert to fraction form
    652,504.82/978,440.79 = 382,721.12/x
  3. Step 3: Cross multiply
    652,504.82x = 978,440.79 × 382,721.12
  4. Step 4: Simplify right side
    652,504.82x = 374,469,955,002.49
  5. Step 5: Solve for x
    x = 374,469,955,002.49/652,504.82
  6. Step 6: Final answer
    x = 573,896.07

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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.