Home / 753,459.76-1,130,198.42-220,991.41

Finding the Fourth Proportional to 753,459.76, 1,130,198.42 and 220,991.41

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Solution

The fourth proportional to 753,459.76, 1,130,198.42 and 220,991.41 is: 331,489.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,459.76 : 1,130,198.42 = 220,991.41 : x
  2. Step 2: Convert to fraction form
    753,459.76/1,130,198.42 = 220,991.41/x
  3. Step 3: Cross multiply
    753,459.76x = 1,130,198.42 × 220,991.41
  4. Step 4: Simplify right side
    753,459.76x = 249,764,142,415.57
  5. Step 5: Solve for x
    x = 249,764,142,415.57/753,459.76
  6. Step 6: Final answer
    x = 331,489.69

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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.