Home / 1,428,761.35-2,143,741.76-889,468.62

Finding the Fourth Proportional to 1,428,761.35, 2,143,741.76 and 889,468.62

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Solution

The fourth proportional to 1,428,761.35, 2,143,741.76 and 889,468.62 is: 1,334,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,761.35 : 2,143,741.76 = 889,468.62 : x
  2. Step 2: Convert to fraction form
    1,428,761.35/2,143,741.76 = 889,468.62/x
  3. Step 3: Cross multiply
    1,428,761.35x = 2,143,741.76 × 889,468.62
  4. Step 4: Simplify right side
    1,428,761.35x = 1,906,791,024,903.57
  5. Step 5: Solve for x
    x = 1,906,791,024,903.57/1,428,761.35
  6. Step 6: Final answer
    x = 1,334,576.29

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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.