Home / 1,644,679.45-2,269,055.30-991,449.89

Finding the Fourth Proportional to 1,644,679.45, 2,269,055.30 and 991,449.89

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Solution

The fourth proportional to 1,644,679.45, 2,269,055.30 and 991,449.89 is: 1,367,837.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644,679.45 : 2,269,055.30 = 991,449.89 : x
  2. Step 2: Convert to fraction form
    1,644,679.45/2,269,055.30 = 991,449.89/x
  3. Step 3: Cross multiply
    1,644,679.45x = 2,269,055.30 × 991,449.89
  4. Step 4: Simplify right side
    1,644,679.45x = 2,249,654,627,588.92
  5. Step 5: Solve for x
    x = 2,249,654,627,588.92/1,644,679.45
  6. Step 6: Final answer
    x = 1,367,837.74

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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.