Finding the Fourth Proportional to 3,146,436.80, 4,340,963.04 and 1,856,631.68
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Solution
The fourth proportional to 3,146,436.80, 4,340,963.04 and 1,856,631.68 is: 2,561,490.99
Step by Step Solution
- Step 1: Write the proportion equation
3,146,436.80 : 4,340,963.04 = 1,856,631.68 : x - Step 2: Convert to fraction form
3,146,436.80/4,340,963.04 = 1,856,631.68/x - Step 3: Cross multiply
3,146,436.80x = 4,340,963.04 × 1,856,631.68 - Step 4: Simplify right side
3,146,436.80x = 8,059,569,501,773.11 - Step 5: Solve for x
x = 8,059,569,501,773.11/3,146,436.80 - Step 6: Final answer
x = 2,561,490.99
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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.