Home / 1,221,589.82-1,685,996.29-677,900.25

Finding the Fourth Proportional to 1,221,589.82, 1,685,996.29 and 677,900.25

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Solution

The fourth proportional to 1,221,589.82, 1,685,996.29 and 677,900.25 is: 935,614.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,589.82 : 1,685,996.29 = 677,900.25 : x
  2. Step 2: Convert to fraction form
    1,221,589.82/1,685,996.29 = 677,900.25/x
  3. Step 3: Cross multiply
    1,221,589.82x = 1,685,996.29 × 677,900.25
  4. Step 4: Simplify right side
    1,221,589.82x = 1,142,937,306,490.07
  5. Step 5: Solve for x
    x = 1,142,937,306,490.07/1,221,589.82
  6. Step 6: Final answer
    x = 935,614.63

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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.