Home / 753,131.52-1,129,697.28-220,652.64

Finding the Fourth Proportional to 753,131.52, 1,129,697.28 and 220,652.64

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Solution

The fourth proportional to 753,131.52, 1,129,697.28 and 220,652.64 is: 330,978.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,131.52 : 1,129,697.28 = 220,652.64 : x
  2. Step 2: Convert to fraction form
    753,131.52/1,129,697.28 = 220,652.64/x
  3. Step 3: Cross multiply
    753,131.52x = 1,129,697.28 × 220,652.64
  4. Step 4: Simplify right side
    753,131.52x = 249,270,687,232.82
  5. Step 5: Solve for x
    x = 249,270,687,232.82/753,131.52
  6. Step 6: Final answer
    x = 330,978.96

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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.