Finding the Fourth Proportional to 757,710.72, 1,136,779.31 and 331,283.99
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Solution
The fourth proportional to 757,710.72, 1,136,779.31 and 331,283.99 is: 497,019.22
Step by Step Solution
- Step 1: Write the proportion equation
757,710.72 : 1,136,779.31 = 331,283.99 : x - Step 2: Convert to fraction form
757,710.72/1,136,779.31 = 331,283.99/x - Step 3: Cross multiply
757,710.72x = 1,136,779.31 × 331,283.99 - Step 4: Simplify right side
757,710.72x = 376,596,789,236.41 - Step 5: Solve for x
x = 376,596,789,236.41/757,710.72 - Step 6: Final answer
x = 497,019.22
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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.