Home / 826,317.76-1,236,819.38-426,413.84

Finding the Fourth Proportional to 826,317.76, 1,236,819.38 and 426,413.84

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Solution

The fourth proportional to 826,317.76, 1,236,819.38 and 426,413.84 is: 638,249.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,317.76 : 1,236,819.38 = 426,413.84 : x
  2. Step 2: Convert to fraction form
    826,317.76/1,236,819.38 = 426,413.84/x
  3. Step 3: Cross multiply
    826,317.76x = 1,236,819.38 × 426,413.84
  4. Step 4: Simplify right side
    826,317.76x = 527,396,901,212.22
  5. Step 5: Solve for x
    x = 527,396,901,212.22/826,317.76
  6. Step 6: Final answer
    x = 638,249.50

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Double scale
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1.5x scale

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.