Finding the Fourth Proportional to 1,991,351.77, 2,989,243.20 and 1,031,551.18
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Solution
The fourth proportional to 1,991,351.77, 2,989,243.20 and 1,031,551.18 is: 1,548,474.46
Step by Step Solution
- Step 1: Write the proportion equation
1,991,351.77 : 2,989,243.20 = 1,031,551.18 : x - Step 2: Convert to fraction form
1,991,351.77/2,989,243.20 = 1,031,551.18/x - Step 3: Cross multiply
1,991,351.77x = 2,989,243.20 × 1,031,551.18 - Step 4: Simplify right side
1,991,351.77x = 3,083,557,350,266.98 - Step 5: Solve for x
x = 3,083,557,350,266.98/1,991,351.77 - Step 6: Final answer
x = 1,548,474.46
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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.