Finding the Fourth Proportional to 722,644.96, 1,083,882.99 and 290,344.90
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Solution
The fourth proportional to 722,644.96, 1,083,882.99 and 290,344.90 is: 435,483.42
Step by Step Solution
- Step 1: Write the proportion equation
722,644.96 : 1,083,882.99 = 290,344.90 : x - Step 2: Convert to fraction form
722,644.96/1,083,882.99 = 290,344.90/x - Step 3: Cross multiply
722,644.96x = 1,083,882.99 × 290,344.90 - Step 4: Simplify right side
722,644.96x = 314,699,898,343.25 - Step 5: Solve for x
x = 314,699,898,343.25/722,644.96 - Step 6: Final answer
x = 435,483.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.