Home / 493,429.23-680,894.33-278,590.50

Finding the Fourth Proportional to 493,429.23, 680,894.33 and 278,590.50

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Solution

The fourth proportional to 493,429.23, 680,894.33 and 278,590.50 is: 384,433.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,429.23 : 680,894.33 = 278,590.50 : x
  2. Step 2: Convert to fraction form
    493,429.23/680,894.33 = 278,590.50/x
  3. Step 3: Cross multiply
    493,429.23x = 680,894.33 × 278,590.50
  4. Step 4: Simplify right side
    493,429.23x = 189,690,691,841.87
  5. Step 5: Solve for x
    x = 189,690,691,841.87/493,429.23
  6. Step 6: Final answer
    x = 384,433.43

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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.