Finding the Fourth Proportional to 659,749.19, 989,919.09 and 379,266.44
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Solution
The fourth proportional to 659,749.19, 989,919.09 and 379,266.44 is: 569,069.42
Step by Step Solution
- Step 1: Write the proportion equation
659,749.19 : 989,919.09 = 379,266.44 : x - Step 2: Convert to fraction form
659,749.19/989,919.09 = 379,266.44/x - Step 3: Cross multiply
659,749.19x = 989,919.09 × 379,266.44 - Step 4: Simplify right side
659,749.19x = 375,443,084,202.74 - Step 5: Solve for x
x = 375,443,084,202.74/659,749.19 - Step 6: Final answer
x = 569,069.42
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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.