Finding the Fourth Proportional to 738,918.81, 1,108,380.92 and 206,438.99
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Solution
The fourth proportional to 738,918.81, 1,108,380.92 and 206,438.99 is: 309,659.23
Step by Step Solution
- Step 1: Write the proportion equation
738,918.81 : 1,108,380.92 = 206,438.99 : x - Step 2: Convert to fraction form
738,918.81/1,108,380.92 = 206,438.99/x - Step 3: Cross multiply
738,918.81x = 1,108,380.92 × 206,438.99 - Step 4: Simplify right side
738,918.81x = 228,813,031,085.97 - Step 5: Solve for x
x = 228,813,031,085.97/738,918.81 - Step 6: Final answer
x = 309,659.23
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.