Finding the Fourth Proportional to 2,138,862.74, 3,208,296.52 and 541,425.88
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Solution
The fourth proportional to 2,138,862.74, 3,208,296.52 and 541,425.88 is: 812,139.43
Step by Step Solution
- Step 1: Write the proportion equation
2,138,862.74 : 3,208,296.52 = 541,425.88 : x - Step 2: Convert to fraction form
2,138,862.74/3,208,296.52 = 541,425.88/x - Step 3: Cross multiply
2,138,862.74x = 3,208,296.52 × 541,425.88 - Step 4: Simplify right side
2,138,862.74x = 1,737,054,766,641.94 - Step 5: Solve for x
x = 1,737,054,766,641.94/2,138,862.74 - Step 6: Final answer
x = 812,139.43
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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.