Finding the Fourth Proportional to 2,138,371.38, 3,207,561.62 and 519,134.19
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Solution
The fourth proportional to 2,138,371.38, 3,207,561.62 and 519,134.19 is: 778,702.39
Step by Step Solution
- Step 1: Write the proportion equation
2,138,371.38 : 3,207,561.62 = 519,134.19 : x - Step 2: Convert to fraction form
2,138,371.38/3,207,561.62 = 519,134.19/x - Step 3: Cross multiply
2,138,371.38x = 3,207,561.62 × 519,134.19 - Step 4: Simplify right side
2,138,371.38x = 1,665,154,900,878.12 - Step 5: Solve for x
x = 1,665,154,900,878.12/2,138,371.38 - Step 6: Final answer
x = 778,702.39
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.