Finding the Fourth Proportional to 664,419.40, 994,004.70 and 576,647.80
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Solution
The fourth proportional to 664,419.40, 994,004.70 and 576,647.80 is: 862,693.99
Step by Step Solution
- Step 1: Write the proportion equation
664,419.40 : 994,004.70 = 576,647.80 : x - Step 2: Convert to fraction form
664,419.40/994,004.70 = 576,647.80/x - Step 3: Cross multiply
664,419.40x = 994,004.70 × 576,647.80 - Step 4: Simplify right side
664,419.40x = 573,190,623,444.66 - Step 5: Solve for x
x = 573,190,623,444.66/664,419.40 - Step 6: Final answer
x = 862,693.99
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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.