Finding the Fourth Proportional to 666,917.99, 1,000,536.12 and 217,639.69
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Solution
The fourth proportional to 666,917.99, 1,000,536.12 and 217,639.69 is: 326,511.47
Step by Step Solution
- Step 1: Write the proportion equation
666,917.99 : 1,000,536.12 = 217,639.69 : x - Step 2: Convert to fraction form
666,917.99/1,000,536.12 = 217,639.69/x - Step 3: Cross multiply
666,917.99x = 1,000,536.12 × 217,639.69 - Step 4: Simplify right side
666,917.99x = 217,756,370,990.60 - Step 5: Solve for x
x = 217,756,370,990.60/666,917.99 - Step 6: Final answer
x = 326,511.47
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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.