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Finding the Fourth Proportional to 609,328.41, 840,882.05 and 337,395.78

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Solution

The fourth proportional to 609,328.41, 840,882.05 and 337,395.78 is: 465,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,328.41 : 840,882.05 = 337,395.78 : x
  2. Step 2: Convert to fraction form
    609,328.41/840,882.05 = 337,395.78/x
  3. Step 3: Cross multiply
    609,328.41x = 840,882.05 × 337,395.78
  4. Step 4: Simplify right side
    609,328.41x = 283,710,055,147.75
  5. Step 5: Solve for x
    x = 283,710,055,147.75/609,328.41
  6. Step 6: Final answer
    x = 465,611.07

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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.