Finding the Fourth Proportional to 647,809.80, 971,787.60 and 198,527.10
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Solution
The fourth proportional to 647,809.80, 971,787.60 and 198,527.10 is: 297,812.99
Step by Step Solution
- Step 1: Write the proportion equation
647,809.80 : 971,787.60 = 198,527.10 : x - Step 2: Convert to fraction form
647,809.80/971,787.60 = 198,527.10/x - Step 3: Cross multiply
647,809.80x = 971,787.60 × 198,527.10 - Step 4: Simplify right side
647,809.80x = 192,926,174,043.96 - Step 5: Solve for x
x = 192,926,174,043.96/647,809.80 - Step 6: Final answer
x = 297,812.99
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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.