Home / 821,713.14-1,133,961.75-454,187.82

Finding the Fourth Proportional to 821,713.14, 1,133,961.75 and 454,187.82

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Solution

The fourth proportional to 821,713.14, 1,133,961.75 and 454,187.82 is: 626,777.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,713.14 : 1,133,961.75 = 454,187.82 : x
  2. Step 2: Convert to fraction form
    821,713.14/1,133,961.75 = 454,187.82/x
  3. Step 3: Cross multiply
    821,713.14x = 1,133,961.75 × 454,187.82
  4. Step 4: Simplify right side
    821,713.14x = 515,031,615,195.89
  5. Step 5: Solve for x
    x = 515,031,615,195.89/821,713.14
  6. Step 6: Final answer
    x = 626,777.87

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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.