Home / 821,320.11-1,133,409.68-458,749.26

Finding the Fourth Proportional to 821,320.11, 1,133,409.68 and 458,749.26

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Solution

The fourth proportional to 821,320.11, 1,133,409.68 and 458,749.26 is: 633,067.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,320.11 : 1,133,409.68 = 458,749.26 : x
  2. Step 2: Convert to fraction form
    821,320.11/1,133,409.68 = 458,749.26/x
  3. Step 3: Cross multiply
    821,320.11x = 1,133,409.68 × 458,749.26
  4. Step 4: Simplify right side
    821,320.11x = 519,950,849,683.09
  5. Step 5: Solve for x
    x = 519,950,849,683.09/821,320.11
  6. Step 6: Final answer
    x = 633,067.23

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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.