Home / 1,489,405.72-2,055,431.10-810,367.96

Finding the Fourth Proportional to 1,489,405.72, 2,055,431.10 and 810,367.96

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Solution

The fourth proportional to 1,489,405.72, 2,055,431.10 and 810,367.96 is: 1,118,335.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,405.72 : 2,055,431.10 = 810,367.96 : x
  2. Step 2: Convert to fraction form
    1,489,405.72/2,055,431.10 = 810,367.96/x
  3. Step 3: Cross multiply
    1,489,405.72x = 2,055,431.10 × 810,367.96
  4. Step 4: Simplify right side
    1,489,405.72x = 1,665,655,507,427.56
  5. Step 5: Solve for x
    x = 1,665,655,507,427.56/1,489,405.72
  6. Step 6: Final answer
    x = 1,118,335.65

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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.