Home / 1,225,510.52-1,691,180.24-681,634.62

Finding the Fourth Proportional to 1,225,510.52, 1,691,180.24 and 681,634.62

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Solution

The fourth proportional to 1,225,510.52, 1,691,180.24 and 681,634.62 is: 940,642.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,510.52 : 1,691,180.24 = 681,634.62 : x
  2. Step 2: Convert to fraction form
    1,225,510.52/1,691,180.24 = 681,634.62/x
  3. Step 3: Cross multiply
    1,225,510.52x = 1,691,180.24 × 681,634.62
  4. Step 4: Simplify right side
    1,225,510.52x = 1,152,766,996,835.74
  5. Step 5: Solve for x
    x = 1,152,766,996,835.74/1,225,510.52
  6. Step 6: Final answer
    x = 940,642.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.