Finding the Fourth Proportional to 1,247,720.66, 1,871,912.57 and 394,807.47
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Solution
The fourth proportional to 1,247,720.66, 1,871,912.57 and 394,807.47 is: 592,316.12
Step by Step Solution
- Step 1: Write the proportion equation
1,247,720.66 : 1,871,912.57 = 394,807.47 : x - Step 2: Convert to fraction form
1,247,720.66/1,871,912.57 = 394,807.47/x - Step 3: Cross multiply
1,247,720.66x = 1,871,912.57 × 394,807.47 - Step 4: Simplify right side
1,247,720.66x = 739,045,060,160.38 - Step 5: Solve for x
x = 739,045,060,160.38/1,247,720.66 - Step 6: Final answer
x = 592,316.12
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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.