Home / 821,320.39-1,133,410.07-458,749.54

Finding the Fourth Proportional to 821,320.39, 1,133,410.07 and 458,749.54

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Solution

The fourth proportional to 821,320.39, 1,133,410.07 and 458,749.54 is: 633,067.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,320.39 : 1,133,410.07 = 458,749.54 : x
  2. Step 2: Convert to fraction form
    821,320.39/1,133,410.07 = 458,749.54/x
  3. Step 3: Cross multiply
    821,320.39x = 1,133,410.07 × 458,749.54
  4. Step 4: Simplify right side
    821,320.39x = 519,951,348,243.87
  5. Step 5: Solve for x
    x = 519,951,348,243.87/821,320.39
  6. Step 6: Final answer
    x = 633,067.62

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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.