Finding the Fourth Proportional to 2,657,138.40, 3,985,707.60 and 738,045.90
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Solution
The fourth proportional to 2,657,138.40, 3,985,707.60 and 738,045.90 is: 1,107,068.85
Step by Step Solution
- Step 1: Write the proportion equation
2,657,138.40 : 3,985,707.60 = 738,045.90 : x - Step 2: Convert to fraction form
2,657,138.40/3,985,707.60 = 738,045.90/x - Step 3: Cross multiply
2,657,138.40x = 3,985,707.60 × 738,045.90 - Step 4: Simplify right side
2,657,138.40x = 2,941,635,152,778.84 - Step 5: Solve for x
x = 2,941,635,152,778.84/2,657,138.40 - Step 6: Final answer
x = 1,107,068.85
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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.