Home / 987,385.50-1,481,083.11-239,431.50

Finding the Fourth Proportional to 987,385.50, 1,481,083.11 and 239,431.50

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Solution

The fourth proportional to 987,385.50, 1,481,083.11 and 239,431.50 is: 359,148.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,385.50 : 1,481,083.11 = 239,431.50 : x
  2. Step 2: Convert to fraction form
    987,385.50/1,481,083.11 = 239,431.50/x
  3. Step 3: Cross multiply
    987,385.50x = 1,481,083.11 × 239,431.50
  4. Step 4: Simplify right side
    987,385.50x = 354,617,950,651.97
  5. Step 5: Solve for x
    x = 354,617,950,651.97/987,385.50
  6. Step 6: Final answer
    x = 359,148.43

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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.