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Finding the Fourth Proportional to 652,504.35, 978,440.09 and 382,720.65

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Solution

The fourth proportional to 652,504.35, 978,440.09 and 382,720.65 is: 573,895.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,504.35 : 978,440.09 = 382,720.65 : x
  2. Step 2: Convert to fraction form
    652,504.35/978,440.09 = 382,720.65/x
  3. Step 3: Cross multiply
    652,504.35x = 978,440.09 × 382,720.65
  4. Step 4: Simplify right side
    652,504.35x = 374,469,227,230.86
  5. Step 5: Solve for x
    x = 374,469,227,230.86/652,504.35
  6. Step 6: Final answer
    x = 573,895.37

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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.