Home / 493,771.14-681,418.17-278,920.26

Finding the Fourth Proportional to 493,771.14, 681,418.17 and 278,920.26

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Solution

The fourth proportional to 493,771.14, 681,418.17 and 278,920.26 is: 384,917.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,771.14 : 681,418.17 = 278,920.26 : x
  2. Step 2: Convert to fraction form
    493,771.14/681,418.17 = 278,920.26/x
  3. Step 3: Cross multiply
    493,771.14x = 681,418.17 × 278,920.26
  4. Step 4: Simplify right side
    493,771.14x = 190,061,333,145.12
  5. Step 5: Solve for x
    x = 190,061,333,145.12/493,771.14
  6. Step 6: Final answer
    x = 384,917.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.