Finding the Fourth Proportional to 721,922.67, 996,516.09 and 420,116.67
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Solution
The fourth proportional to 721,922.67, 996,516.09 and 420,116.67 is: 579,913.94
Step by Step Solution
- Step 1: Write the proportion equation
721,922.67 : 996,516.09 = 420,116.67 : x - Step 2: Convert to fraction form
721,922.67/996,516.09 = 420,116.67/x - Step 3: Cross multiply
721,922.67x = 996,516.09 × 420,116.67 - Step 4: Simplify right side
721,922.67x = 418,653,021,332.22 - Step 5: Solve for x
x = 418,653,021,332.22/721,922.67 - Step 6: Final answer
x = 579,913.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.