Finding the Fourth Proportional to 5,315,341.27, 7,974,174.75 and 1,721,471.53
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Solution
The fourth proportional to 5,315,341.27, 7,974,174.75 and 1,721,471.53 is: 2,582,583.90
Step by Step Solution
- Step 1: Write the proportion equation
5,315,341.27 : 7,974,174.75 = 1,721,471.53 : x - Step 2: Convert to fraction form
5,315,341.27/7,974,174.75 = 1,721,471.53/x - Step 3: Cross multiply
5,315,341.27x = 7,974,174.75 × 1,721,471.53 - Step 4: Simplify right side
5,315,341.27x = 13,727,314,807,369.87 - Step 5: Solve for x
x = 13,727,314,807,369.87/5,315,341.27 - Step 6: Final answer
x = 2,582,583.90
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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.