Finding the Fourth Proportional to 686,605.70, 1,029,974.76 and 213,163.94
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Solution
The fourth proportional to 686,605.70, 1,029,974.76 and 213,163.94 is: 319,766.46
Step by Step Solution
- Step 1: Write the proportion equation
686,605.70 : 1,029,974.76 = 213,163.94 : x - Step 2: Convert to fraction form
686,605.70/1,029,974.76 = 213,163.94/x - Step 3: Cross multiply
686,605.70x = 1,029,974.76 × 213,163.94 - Step 4: Simplify right side
686,605.70x = 219,553,472,792.28 - Step 5: Solve for x
x = 219,553,472,792.28/686,605.70 - Step 6: Final answer
x = 319,766.46
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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.