Finding the Fourth Proportional to 647,635.80, 971,453.70 and 367,699.80
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Solution
The fourth proportional to 647,635.80, 971,453.70 and 367,699.80 is: 551,549.70
Step by Step Solution
- Step 1: Write the proportion equation
647,635.80 : 971,453.70 = 367,699.80 : x - Step 2: Convert to fraction form
647,635.80/971,453.70 = 367,699.80/x - Step 3: Cross multiply
647,635.80x = 971,453.70 × 367,699.80 - Step 4: Simplify right side
647,635.80x = 357,203,331,199.26 - Step 5: Solve for x
x = 357,203,331,199.26/647,635.80 - Step 6: Final answer
x = 551,549.70
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1.5x scale
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.