Finding the Fourth Proportional to 1,991,352.27, 2,989,243.95 and 1,031,551.68
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Solution
The fourth proportional to 1,991,352.27, 2,989,243.95 and 1,031,551.68 is: 1,548,475.21
Step by Step Solution
- Step 1: Write the proportion equation
1,991,352.27 : 2,989,243.95 = 1,031,551.68 : x - Step 2: Convert to fraction form
1,991,352.27/2,989,243.95 = 1,031,551.68/x - Step 3: Cross multiply
1,991,352.27x = 2,989,243.95 × 1,031,551.68 - Step 4: Simplify right side
1,991,352.27x = 3,083,559,618,552.34 - Step 5: Solve for x
x = 3,083,559,618,552.34/1,991,352.27 - Step 6: Final answer
x = 1,548,475.21
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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.