Home / 682,151.40-1,022,643.66-261,729

Finding the Fourth Proportional to 682,151.40, 1,022,643.66 and 261,729

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Solution

The fourth proportional to 682,151.40, 1,022,643.66 and 261,729 is: 392,369.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,151.40 : 1,022,643.66 = 261,729 : x
  2. Step 2: Convert to fraction form
    682,151.40/1,022,643.66 = 261,729/x
  3. Step 3: Cross multiply
    682,151.40x = 1,022,643.66 × 261,729
  4. Step 4: Simplify right side
    682,151.40x = 267,655,502,488.14
  5. Step 5: Solve for x
    x = 267,655,502,488.14/682,151.40
  6. Step 6: Final answer
    x = 392,369.64

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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.