Home / 848,412.72-1,272,348.60-279,687.83

Finding the Fourth Proportional to 848,412.72, 1,272,348.60 and 279,687.83

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Solution

The fourth proportional to 848,412.72, 1,272,348.60 and 279,687.83 is: 419,442.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,412.72 : 1,272,348.60 = 279,687.83 : x
  2. Step 2: Convert to fraction form
    848,412.72/1,272,348.60 = 279,687.83/x
  3. Step 3: Cross multiply
    848,412.72x = 1,272,348.60 × 279,687.83
  4. Step 4: Simplify right side
    848,412.72x = 355,860,412,575.80
  5. Step 5: Solve for x
    x = 355,860,412,575.80/848,412.72
  6. Step 6: Final answer
    x = 419,442.57

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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.