Finding the Third Proportional to 321,055.21 and 691,779.23
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Solution
The third proportional to 321,055.21 and 691,779.23 is: 1,490,580.12
Step by Step Solution
- Step 1: Write the proportion equation
321,055.21 : 691,779.23 = 691,779.23 : x - Step 2: Convert to fraction form
321,055.21/691,779.23 = 691,779.23/x - Step 3: Cross multiply
321,055.21x = 691,779.23 × 691,779.23 - Step 4: Simplify right side
321,055.21x = 478,558,509,112.46 - Step 5: Solve for x
x = 478,558,509,112.46/321,055.21 - Step 6: Final answer
x = 1,490,580.12
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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.