Home / 982,921.82-1,356,475.75-553,229.78

Finding the Fourth Proportional to 982,921.82, 1,356,475.75 and 553,229.78

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Solution

The fourth proportional to 982,921.82, 1,356,475.75 and 553,229.78 is: 763,481.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,921.82 : 1,356,475.75 = 553,229.78 : x
  2. Step 2: Convert to fraction form
    982,921.82/1,356,475.75 = 553,229.78/x
  3. Step 3: Cross multiply
    982,921.82x = 1,356,475.75 × 553,229.78
  4. Step 4: Simplify right side
    982,921.82x = 750,442,772,582.38
  5. Step 5: Solve for x
    x = 750,442,772,582.38/982,921.82
  6. Step 6: Final answer
    x = 763,481.65

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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.