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Finding the Fourth Proportional to 605,490, 835,602.12 and 337,218

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Solution

The fourth proportional to 605,490, 835,602.12 and 337,218 is: 465,375.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,490 : 835,602.12 = 337,218 : x
  2. Step 2: Convert to fraction form
    605,490/835,602.12 = 337,218/x
  3. Step 3: Cross multiply
    605,490x = 835,602.12 × 337,218
  4. Step 4: Simplify right side
    605,490x = 281,780,075,702.16
  5. Step 5: Solve for x
    x = 281,780,075,702.16/605,490
  6. Step 6: Final answer
    x = 465,375.28

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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.