Home / 1,302,759.42-1,797,879.78-721,970.34

Finding the Fourth Proportional to 1,302,759.42, 1,797,879.78 and 721,970.34

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Solution

The fourth proportional to 1,302,759.42, 1,797,879.78 and 721,970.34 is: 996,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,759.42 : 1,797,879.78 = 721,970.34 : x
  2. Step 2: Convert to fraction form
    1,302,759.42/1,797,879.78 = 721,970.34/x
  3. Step 3: Cross multiply
    1,302,759.42x = 1,797,879.78 × 721,970.34
  4. Step 4: Simplify right side
    1,302,759.42x = 1,298,015,876,045.73
  5. Step 5: Solve for x
    x = 1,298,015,876,045.73/1,302,759.42
  6. Step 6: Final answer
    x = 996,358.85

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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.