Home / 679,672.49-1,019,442.92-206,361.95

Finding the Fourth Proportional to 679,672.49, 1,019,442.92 and 206,361.95

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Solution

The fourth proportional to 679,672.49, 1,019,442.92 and 206,361.95 is: 309,522.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,672.49 : 1,019,442.92 = 206,361.95 : x
  2. Step 2: Convert to fraction form
    679,672.49/1,019,442.92 = 206,361.95/x
  3. Step 3: Cross multiply
    679,672.49x = 1,019,442.92 × 206,361.95
  4. Step 4: Simplify right side
    679,672.49x = 210,374,222,755.87
  5. Step 5: Solve for x
    x = 210,374,222,755.87/679,672.49
  6. Step 6: Final answer
    x = 309,522.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.