Home / 872,879.78-1,204,562.58-490,906.64

Finding the Fourth Proportional to 872,879.78, 1,204,562.58 and 490,906.64

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Solution

The fourth proportional to 872,879.78, 1,204,562.58 and 490,906.64 is: 677,444.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,879.78 : 1,204,562.58 = 490,906.64 : x
  2. Step 2: Convert to fraction form
    872,879.78/1,204,562.58 = 490,906.64/x
  3. Step 3: Cross multiply
    872,879.78x = 1,204,562.58 × 490,906.64
  4. Step 4: Simplify right side
    872,879.78x = 591,327,768,817.53
  5. Step 5: Solve for x
    x = 591,327,768,817.53/872,879.78
  6. Step 6: Final answer
    x = 677,444.69

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Double scale
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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.