Home / 807,676.81-1,211,534.66-386,489.77

Finding the Fourth Proportional to 807,676.81, 1,211,534.66 and 386,489.77

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Solution

The fourth proportional to 807,676.81, 1,211,534.66 and 386,489.77 is: 579,743.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,676.81 : 1,211,534.66 = 386,489.77 : x
  2. Step 2: Convert to fraction form
    807,676.81/1,211,534.66 = 386,489.77/x
  3. Step 3: Cross multiply
    807,676.81x = 1,211,534.66 × 386,489.77
  4. Step 4: Simplify right side
    807,676.81x = 468,245,750,157.98
  5. Step 5: Solve for x
    x = 468,245,750,157.98/807,676.81
  6. Step 6: Final answer
    x = 579,743.96

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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.