Home / 1,319,843.11-1,821,383.49-716,231.11

Finding the Fourth Proportional to 1,319,843.11, 1,821,383.49 and 716,231.11

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Solution

The fourth proportional to 1,319,843.11, 1,821,383.49 and 716,231.11 is: 988,398.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,843.11 : 1,821,383.49 = 716,231.11 : x
  2. Step 2: Convert to fraction form
    1,319,843.11/1,821,383.49 = 716,231.11/x
  3. Step 3: Cross multiply
    1,319,843.11x = 1,821,383.49 × 716,231.11
  4. Step 4: Simplify right side
    1,319,843.11x = 1,304,531,518,311.48
  5. Step 5: Solve for x
    x = 1,304,531,518,311.48/1,319,843.11
  6. Step 6: Final answer
    x = 988,398.93

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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.