Home / 1,011,446.33-1,394,493.57-721,388.57

Finding the Fourth Proportional to 1,011,446.33, 1,394,493.57 and 721,388.57

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Solution

The fourth proportional to 1,011,446.33, 1,394,493.57 and 721,388.57 is: 994,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,446.33 : 1,394,493.57 = 721,388.57 : x
  2. Step 2: Convert to fraction form
    1,011,446.33/1,394,493.57 = 721,388.57/x
  3. Step 3: Cross multiply
    1,011,446.33x = 1,394,493.57 × 721,388.57
  4. Step 4: Simplify right side
    1,011,446.33x = 1,005,971,715,364.03
  5. Step 5: Solve for x
    x = 1,005,971,715,364.03/1,011,446.33
  6. Step 6: Final answer
    x = 994,587.35

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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.