Finding the Fourth Proportional to 666,680.62, 920,021.70 and 360,757.01
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Solution
The fourth proportional to 666,680.62, 920,021.70 and 360,757.01 is: 497,845.99
Step by Step Solution
- Step 1: Write the proportion equation
666,680.62 : 920,021.70 = 360,757.01 : x - Step 2: Convert to fraction form
666,680.62/920,021.70 = 360,757.01/x - Step 3: Cross multiply
666,680.62x = 920,021.70 × 360,757.01 - Step 4: Simplify right side
666,680.62x = 331,904,271,223.22 - Step 5: Solve for x
x = 331,904,271,223.22/666,680.62 - Step 6: Final answer
x = 497,845.99
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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.