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Finding the Fourth Proportional to 493,303.89, 680,759.97 and 266,949.39

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Solution

The fourth proportional to 493,303.89, 680,759.97 and 266,949.39 is: 368,390.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,303.89 : 680,759.97 = 266,949.39 : x
  2. Step 2: Convert to fraction form
    493,303.89/680,759.97 = 266,949.39/x
  3. Step 3: Cross multiply
    493,303.89x = 680,759.97 × 266,949.39
  4. Step 4: Simplify right side
    493,303.89x = 181,728,458,727.92
  5. Step 5: Solve for x
    x = 181,728,458,727.92/493,303.89
  6. Step 6: Final answer
    x = 368,390.48

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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.