Finding the Fourth Proportional to 1,428,122.68, 1,970,743.96 and 783,529.56
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Solution
The fourth proportional to 1,428,122.68, 1,970,743.96 and 783,529.56 is: 1,081,234.95
Step by Step Solution
- Step 1: Write the proportion equation
1,428,122.68 : 1,970,743.96 = 783,529.56 : x - Step 2: Convert to fraction form
1,428,122.68/1,970,743.96 = 783,529.56/x - Step 3: Cross multiply
1,428,122.68x = 1,970,743.96 × 783,529.56 - Step 4: Simplify right side
1,428,122.68x = 1,544,136,147,851.46 - Step 5: Solve for x
x = 1,544,136,147,851.46/1,428,122.68 - Step 6: Final answer
x = 1,081,234.95
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.