Home / 1,269,279.20-1,904,005.20-404,645.60

Finding the Fourth Proportional to 1,269,279.20, 1,904,005.20 and 404,645.60

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Solution

The fourth proportional to 1,269,279.20, 1,904,005.20 and 404,645.60 is: 606,995.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,279.20 : 1,904,005.20 = 404,645.60 : x
  2. Step 2: Convert to fraction form
    1,269,279.20/1,904,005.20 = 404,645.60/x
  3. Step 3: Cross multiply
    1,269,279.20x = 1,904,005.20 × 404,645.60
  4. Step 4: Simplify right side
    1,269,279.20x = 770,447,326,557.12
  5. Step 5: Solve for x
    x = 770,447,326,557.12/1,269,279.20
  6. Step 6: Final answer
    x = 606,995.94

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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.