Home / 718,190.88-1,077,284.52-212,791.20

Finding the Fourth Proportional to 718,190.88, 1,077,284.52 and 212,791.20

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Solution

The fourth proportional to 718,190.88, 1,077,284.52 and 212,791.20 is: 319,186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,190.88 : 1,077,284.52 = 212,791.20 : x
  2. Step 2: Convert to fraction form
    718,190.88/1,077,284.52 = 212,791.20/x
  3. Step 3: Cross multiply
    718,190.88x = 1,077,284.52 × 212,791.20
  4. Step 4: Simplify right side
    718,190.88x = 229,236,665,752.22
  5. Step 5: Solve for x
    x = 229,236,665,752.22/718,190.88
  6. Step 6: Final answer
    x = 319,186.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.