Finding the Fourth Proportional to 481,312.79, 664,003.08 and 290,220.02
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Solution
The fourth proportional to 481,312.79, 664,003.08 and 290,220.02 is: 400,377.86
Step by Step Solution
- Step 1: Write the proportion equation
481,312.79 : 664,003.08 = 290,220.02 : x - Step 2: Convert to fraction form
481,312.79/664,003.08 = 290,220.02/x - Step 3: Cross multiply
481,312.79x = 664,003.08 × 290,220.02 - Step 4: Simplify right side
481,312.79x = 192,706,987,157.66 - Step 5: Solve for x
x = 192,706,987,157.66/481,312.79 - Step 6: Final answer
x = 400,377.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.