Home / 987,318.19-1,481,513.10-419,018.95

Finding the Fourth Proportional to 987,318.19, 1,481,513.10 and 419,018.95

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Solution

The fourth proportional to 987,318.19, 1,481,513.10 and 419,018.95 is: 628,755.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,318.19 : 1,481,513.10 = 419,018.95 : x
  2. Step 2: Convert to fraction form
    987,318.19/1,481,513.10 = 419,018.95/x
  3. Step 3: Cross multiply
    987,318.19x = 1,481,513.10 × 419,018.95
  4. Step 4: Simplify right side
    987,318.19x = 620,782,063,573.25
  5. Step 5: Solve for x
    x = 620,782,063,573.25/987,318.19
  6. Step 6: Final answer
    x = 628,755.83

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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.