Finding the Fourth Proportional to 781,544.43, 1,172,336.49 and 212,930.10
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Solution
The fourth proportional to 781,544.43, 1,172,336.49 and 212,930.10 is: 319,400.56
Step by Step Solution
- Step 1: Write the proportion equation
781,544.43 : 1,172,336.49 = 212,930.10 : x - Step 2: Convert to fraction form
781,544.43/1,172,336.49 = 212,930.10/x - Step 3: Cross multiply
781,544.43x = 1,172,336.49 × 212,930.10 - Step 4: Simplify right side
781,544.43x = 249,625,726,049.35 - Step 5: Solve for x
x = 249,625,726,049.35/781,544.43 - Step 6: Final answer
x = 319,400.56
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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.