Home / 1,335,861.82-1,999,062.66-830,660.72

Finding the Fourth Proportional to 1,335,861.82, 1,999,062.66 and 830,660.72

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Solution

The fourth proportional to 1,335,861.82, 1,999,062.66 and 830,660.72 is: 1,243,049.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,335,861.82 : 1,999,062.66 = 830,660.72 : x
  2. Step 2: Convert to fraction form
    1,335,861.82/1,999,062.66 = 830,660.72/x
  3. Step 3: Cross multiply
    1,335,861.82x = 1,999,062.66 × 830,660.72
  4. Step 4: Simplify right side
    1,335,861.82x = 1,660,542,819,329.76
  5. Step 5: Solve for x
    x = 1,660,542,819,329.76/1,335,861.82
  6. Step 6: Final answer
    x = 1,243,049.84

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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.