Finding the Fourth Proportional to 2,166,193.86, 2,989,548.05 and 1,199,324.14
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Solution
The fourth proportional to 2,166,193.86, 2,989,548.05 and 1,199,324.14 is: 1,655,178.33
Step by Step Solution
- Step 1: Write the proportion equation
2,166,193.86 : 2,989,548.05 = 1,199,324.14 : x - Step 2: Convert to fraction form
2,166,193.86/2,989,548.05 = 1,199,324.14/x - Step 3: Cross multiply
2,166,193.86x = 2,989,548.05 × 1,199,324.14 - Step 4: Simplify right side
2,166,193.86x = 3,585,437,138,058.31 - Step 5: Solve for x
x = 3,585,437,138,058.31/2,166,193.86 - Step 6: Final answer
x = 1,655,178.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.