Finding the Fourth Proportional to 563,207.78, 777,220.26 and 305,079.80
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Solution
The fourth proportional to 563,207.78, 777,220.26 and 305,079.80 is: 421,006.62
Step by Step Solution
- Step 1: Write the proportion equation
563,207.78 : 777,220.26 = 305,079.80 : x - Step 2: Convert to fraction form
563,207.78/777,220.26 = 305,079.80/x - Step 3: Cross multiply
563,207.78x = 777,220.26 × 305,079.80 - Step 4: Simplify right side
563,207.78x = 237,114,201,476.75 - Step 5: Solve for x
x = 237,114,201,476.75/563,207.78 - Step 6: Final answer
x = 421,006.62
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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.