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Finding the Fourth Proportional to 1,435,799.88, 1,981,417.14 and 791,243.20

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Solution

The fourth proportional to 1,435,799.88, 1,981,417.14 and 791,243.20 is: 1,091,922.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,799.88 : 1,981,417.14 = 791,243.20 : x
  2. Step 2: Convert to fraction form
    1,435,799.88/1,981,417.14 = 791,243.20/x
  3. Step 3: Cross multiply
    1,435,799.88x = 1,981,417.14 × 791,243.20
  4. Step 4: Simplify right side
    1,435,799.88x = 1,567,782,838,388.45
  5. Step 5: Solve for x
    x = 1,567,782,838,388.45/1,435,799.88
  6. Step 6: Final answer
    x = 1,091,922.95

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