Home / 753,157.36-1,129,745.22-220,689.16

Finding the Fourth Proportional to 753,157.36, 1,129,745.22 and 220,689.16

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Solution

The fourth proportional to 753,157.36, 1,129,745.22 and 220,689.16 is: 331,036.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,157.36 : 1,129,745.22 = 220,689.16 : x
  2. Step 2: Convert to fraction form
    753,157.36/1,129,745.22 = 220,689.16/x
  3. Step 3: Cross multiply
    753,157.36x = 1,129,745.22 × 220,689.16
  4. Step 4: Simplify right side
    753,157.36x = 249,322,523,615.82
  5. Step 5: Solve for x
    x = 249,322,523,615.82/753,157.36
  6. Step 6: Final answer
    x = 331,036.43

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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.