Home / 815,278.48-1,217,427.80-665,815.48

Finding the Fourth Proportional to 815,278.48, 1,217,427.80 and 665,815.48

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Solution

The fourth proportional to 815,278.48, 1,217,427.80 and 665,815.48 is: 994,239.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,278.48 : 1,217,427.80 = 665,815.48 : x
  2. Step 2: Convert to fraction form
    815,278.48/1,217,427.80 = 665,815.48/x
  3. Step 3: Cross multiply
    815,278.48x = 1,217,427.80 × 665,815.48
  4. Step 4: Simplify right side
    815,278.48x = 810,582,275,022.34
  5. Step 5: Solve for x
    x = 810,582,275,022.34/815,278.48
  6. Step 6: Final answer
    x = 994,239.75

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.