Finding the Fourth Proportional to 647,825.80, 971,811.60 and 198,543.10
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Solution
The fourth proportional to 647,825.80, 971,811.60 and 198,543.10 is: 297,836.99
Step by Step Solution
- Step 1: Write the proportion equation
647,825.80 : 971,811.60 = 198,543.10 : x - Step 2: Convert to fraction form
647,825.80/971,811.60 = 198,543.10/x - Step 3: Cross multiply
647,825.80x = 971,811.60 × 198,543.10 - Step 4: Simplify right side
647,825.80x = 192,946,487,679.96 - Step 5: Solve for x
x = 192,946,487,679.96/647,825.80 - Step 6: Final answer
x = 297,836.99
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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.