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Finding the Fourth Proportional to 609,136.63, 840,615.20 and 337,209.06

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Solution

The fourth proportional to 609,136.63, 840,615.20 and 337,209.06 is: 465,352.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,136.63 : 840,615.20 = 337,209.06 : x
  2. Step 2: Convert to fraction form
    609,136.63/840,615.20 = 337,209.06/x
  3. Step 3: Cross multiply
    609,136.63x = 840,615.20 × 337,209.06
  4. Step 4: Simplify right side
    609,136.63x = 283,463,061,829.21
  5. Step 5: Solve for x
    x = 283,463,061,829.21/609,136.63
  6. Step 6: Final answer
    x = 465,352.19

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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.