Home / 1,279,658.48-1,919,290.84-426,745.04

Finding the Fourth Proportional to 1,279,658.48, 1,919,290.84 and 426,745.04

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Solution

The fourth proportional to 1,279,658.48, 1,919,290.84 and 426,745.04 is: 640,051.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,658.48 : 1,919,290.84 = 426,745.04 : x
  2. Step 2: Convert to fraction form
    1,279,658.48/1,919,290.84 = 426,745.04/x
  3. Step 3: Cross multiply
    1,279,658.48x = 1,919,290.84 × 426,745.04
  4. Step 4: Simplify right side
    1,279,658.48x = 819,047,846,287.43
  5. Step 5: Solve for x
    x = 819,047,846,287.43/1,279,658.48
  6. Step 6: Final answer
    x = 640,051.90

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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.