Home / 661,121.48-991,100.61-262,042.38

Finding the Fourth Proportional to 661,121.48, 991,100.61 and 262,042.38

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Solution

The fourth proportional to 661,121.48, 991,100.61 and 262,042.38 is: 392,833.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,121.48 : 991,100.61 = 262,042.38 : x
  2. Step 2: Convert to fraction form
    661,121.48/991,100.61 = 262,042.38/x
  3. Step 3: Cross multiply
    661,121.48x = 991,100.61 × 262,042.38
  4. Step 4: Simplify right side
    661,121.48x = 259,710,362,663.85
  5. Step 5: Solve for x
    x = 259,710,362,663.85/661,121.48
  6. Step 6: Final answer
    x = 392,833.04

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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.