Finding the Third Proportional to 678,486.38 and 921,450.94
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Solution
The third proportional to 678,486.38 and 921,450.94 is: 1,251,420.61
Step by Step Solution
- Step 1: Write the proportion equation
678,486.38 : 921,450.94 = 921,450.94 : x - Step 2: Convert to fraction form
678,486.38/921,450.94 = 921,450.94/x - Step 3: Cross multiply
678,486.38x = 921,450.94 × 921,450.94 - Step 4: Simplify right side
678,486.38x = 849,071,830,219.63 - Step 5: Solve for x
x = 849,071,830,219.63/678,486.38 - Step 6: Final answer
x = 1,251,420.61
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These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.