Finding the Fourth Proportional to 2,827,979.50, 3,902,578.90 and 1,538,797.68
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Solution
The fourth proportional to 2,827,979.50, 3,902,578.90 and 1,538,797.68 is: 2,123,522.95
Step by Step Solution
- Step 1: Write the proportion equation
2,827,979.50 : 3,902,578.90 = 1,538,797.68 : x - Step 2: Convert to fraction form
2,827,979.50/3,902,578.90 = 1,538,797.68/x - Step 3: Cross multiply
2,827,979.50x = 3,902,578.90 × 1,538,797.68 - Step 4: Simplify right side
2,827,979.50x = 6,005,279,357,336.95 - Step 5: Solve for x
x = 6,005,279,357,336.95/2,827,979.50 - Step 6: Final answer
x = 2,123,522.95
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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.