Home / 1,040,354.60-1,560,143.10-409,137.80

Finding the Fourth Proportional to 1,040,354.60, 1,560,143.10 and 409,137.80

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Solution

The fourth proportional to 1,040,354.60, 1,560,143.10 and 409,137.80 is: 613,553.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,354.60 : 1,560,143.10 = 409,137.80 : x
  2. Step 2: Convert to fraction form
    1,040,354.60/1,560,143.10 = 409,137.80/x
  3. Step 3: Cross multiply
    1,040,354.60x = 1,560,143.10 × 409,137.80
  4. Step 4: Simplify right side
    1,040,354.60x = 638,313,515,619.18
  5. Step 5: Solve for x
    x = 638,313,515,619.18/1,040,354.60
  6. Step 6: Final answer
    x = 613,553.80

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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.