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Finding the Fourth Proportional to 609,356.90, 840,912.00 and 337,424.78

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Solution

The fourth proportional to 609,356.90, 840,912.00 and 337,424.78 is: 465,645.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,356.90 : 840,912.00 = 337,424.78 : x
  2. Step 2: Convert to fraction form
    609,356.90/840,912.00 = 337,424.78/x
  3. Step 3: Cross multiply
    609,356.90x = 840,912.00 × 337,424.78
  4. Step 4: Simplify right side
    609,356.90x = 283,744,547,436.30
  5. Step 5: Solve for x
    x = 283,744,547,436.30/609,356.90
  6. Step 6: Final answer
    x = 465,645.91

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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.