Finding the Fourth Proportional to 2,125,191.79, 2,932,766.90 and 1,158,322.87
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Solution
The fourth proportional to 2,125,191.79, 2,932,766.90 and 1,158,322.87 is: 1,598,486.78
Step by Step Solution
- Step 1: Write the proportion equation
2,125,191.79 : 2,932,766.90 = 1,158,322.87 : x - Step 2: Convert to fraction form
2,125,191.79/2,932,766.90 = 1,158,322.87/x - Step 3: Cross multiply
2,125,191.79x = 2,932,766.90 × 1,158,322.87 - Step 4: Simplify right side
2,125,191.79x = 3,397,090,972,649.00 - Step 5: Solve for x
x = 3,397,090,972,649.00/2,125,191.79 - Step 6: Final answer
x = 1,598,486.78
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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.