Home / 988,520.17-1,482,489.60-419,896.75

Finding the Fourth Proportional to 988,520.17, 1,482,489.60 and 419,896.75

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Solution

The fourth proportional to 988,520.17, 1,482,489.60 and 419,896.75 is: 629,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,520.17 : 1,482,489.60 = 419,896.75 : x
  2. Step 2: Convert to fraction form
    988,520.17/1,482,489.60 = 419,896.75/x
  3. Step 3: Cross multiply
    988,520.17x = 1,482,489.60 × 419,896.75
  4. Step 4: Simplify right side
    988,520.17x = 622,492,564,948.80
  5. Step 5: Solve for x
    x = 622,492,564,948.80/988,520.17
  6. Step 6: Final answer
    x = 629,721.66

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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.