Finding the Fourth Proportional to 2,166,572.08, 2,989,832.92 and 1,199,681.60
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Solution
The fourth proportional to 2,166,572.08, 2,989,832.92 and 1,199,681.60 is: 1,655,540.37
Step by Step Solution
- Step 1: Write the proportion equation
2,166,572.08 : 2,989,832.92 = 1,199,681.60 : x - Step 2: Convert to fraction form
2,166,572.08/2,989,832.92 = 1,199,681.60/x - Step 3: Cross multiply
2,166,572.08x = 2,989,832.92 × 1,199,681.60 - Step 4: Simplify right side
2,166,572.08x = 3,586,847,541,198.27 - Step 5: Solve for x
x = 3,586,847,541,198.27/2,166,572.08 - Step 6: Final answer
x = 1,655,540.37
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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.