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Finding the Fourth Proportional to 848,842, 1,272,992.48 and 280,117.12

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Solution

The fourth proportional to 848,842, 1,272,992.48 and 280,117.12 is: 420,086.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,842 : 1,272,992.48 = 280,117.12 : x
  2. Step 2: Convert to fraction form
    848,842/1,272,992.48 = 280,117.12/x
  3. Step 3: Cross multiply
    848,842x = 1,272,992.48 × 280,117.12
  4. Step 4: Simplify right side
    848,842x = 356,586,987,279.26
  5. Step 5: Solve for x
    x = 356,586,987,279.26/848,842
  6. Step 6: Final answer
    x = 420,086.41

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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.