Finding the Third Proportional to 310,791.09 and 438,679.13
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Solution
The third proportional to 310,791.09 and 438,679.13 is: 619,192.05
Step by Step Solution
- Step 1: Write the proportion equation
310,791.09 : 438,679.13 = 438,679.13 : x - Step 2: Convert to fraction form
310,791.09/438,679.13 = 438,679.13/x - Step 3: Cross multiply
310,791.09x = 438,679.13 × 438,679.13 - Step 4: Simplify right side
310,791.09x = 192,439,374,710.77 - Step 5: Solve for x
x = 192,439,374,710.77/310,791.09 - Step 6: Final answer
x = 619,192.05
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These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.