Finding the Fourth Proportional to 2,515,638.18, 3,471,622.80 and 1,427,943.30
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Solution
The fourth proportional to 2,515,638.18, 3,471,622.80 and 1,427,943.30 is: 1,970,585.66
Step by Step Solution
- Step 1: Write the proportion equation
2,515,638.18 : 3,471,622.80 = 1,427,943.30 : x - Step 2: Convert to fraction form
2,515,638.18/3,471,622.80 = 1,427,943.30/x - Step 3: Cross multiply
2,515,638.18x = 3,471,622.80 × 1,427,943.30 - Step 4: Simplify right side
2,515,638.18x = 4,957,280,517,387.24 - Step 5: Solve for x
x = 4,957,280,517,387.24/2,515,638.18 - Step 6: Final answer
x = 1,970,585.66
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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.