Finding the Fourth Proportional to 647,645.80, 971,468.70 and 367,709.80
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Solution
The fourth proportional to 647,645.80, 971,468.70 and 367,709.80 is: 551,564.70
Step by Step Solution
- Step 1: Write the proportion equation
647,645.80 : 971,468.70 = 367,709.80 : x - Step 2: Convert to fraction form
647,645.80/971,468.70 = 367,709.80/x - Step 3: Cross multiply
647,645.80x = 971,468.70 × 367,709.80 - Step 4: Simplify right side
647,645.80x = 357,218,561,383.26 - Step 5: Solve for x
x = 357,218,561,383.26/647,645.80 - Step 6: Final answer
x = 551,564.70
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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.