Home / 842,761.09-1,264,153.29-274,145.16

Finding the Fourth Proportional to 842,761.09, 1,264,153.29 and 274,145.16

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Solution

The fourth proportional to 842,761.09, 1,264,153.29 and 274,145.16 is: 411,221.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,761.09 : 1,264,153.29 = 274,145.16 : x
  2. Step 2: Convert to fraction form
    842,761.09/1,264,153.29 = 274,145.16/x
  3. Step 3: Cross multiply
    842,761.09x = 1,264,153.29 × 274,145.16
  4. Step 4: Simplify right side
    842,761.09x = 346,561,504,095.31
  5. Step 5: Solve for x
    x = 346,561,504,095.31/842,761.09
  6. Step 6: Final answer
    x = 411,221.53

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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.