Home / 821,320.38-1,133,410.08-458,749.53

Finding the Fourth Proportional to 821,320.38, 1,133,410.08 and 458,749.53

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Solution

The fourth proportional to 821,320.38, 1,133,410.08 and 458,749.53 is: 633,067.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,320.38 : 1,133,410.08 = 458,749.53 : x
  2. Step 2: Convert to fraction form
    821,320.38/1,133,410.08 = 458,749.53/x
  3. Step 3: Cross multiply
    821,320.38x = 1,133,410.08 × 458,749.53
  4. Step 4: Simplify right side
    821,320.38x = 519,951,341,497.26
  5. Step 5: Solve for x
    x = 519,951,341,497.26/821,320.38
  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.