Home / 891,843.56-1,337,969.66-386,489.33

Finding the Fourth Proportional to 891,843.56, 1,337,969.66 and 386,489.33

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Solution

The fourth proportional to 891,843.56, 1,337,969.66 and 386,489.33 is: 579,822.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,843.56 : 1,337,969.66 = 386,489.33 : x
  2. Step 2: Convert to fraction form
    891,843.56/1,337,969.66 = 386,489.33/x
  3. Step 3: Cross multiply
    891,843.56x = 1,337,969.66 × 386,489.33
  4. Step 4: Simplify right side
    891,843.56x = 517,110,996,022.82
  5. Step 5: Solve for x
    x = 517,110,996,022.82/891,843.56
  6. Step 6: Final answer
    x = 579,822.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.