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Finding the Fourth Proportional to 659,270.88, 909,812.16 and 372,834

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Solution

The fourth proportional to 659,270.88, 909,812.16 and 372,834 is: 514,521.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,270.88 : 909,812.16 = 372,834 : x
  2. Step 2: Convert to fraction form
    659,270.88/909,812.16 = 372,834/x
  3. Step 3: Cross multiply
    659,270.88x = 909,812.16 × 372,834
  4. Step 4: Simplify right side
    659,270.88x = 339,208,906,861.44
  5. Step 5: Solve for x
    x = 339,208,906,861.44/659,270.88
  6. Step 6: Final answer
    x = 514,521.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.