Finding the Fourth Proportional to 461,622.78, 690,612.21 and 349,625.70
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Solution
The fourth proportional to 461,622.78, 690,612.21 and 349,625.70 is: 523,058.63
Step by Step Solution
- Step 1: Write the proportion equation
461,622.78 : 690,612.21 = 349,625.70 : x - Step 2: Convert to fraction form
461,622.78/690,612.21 = 349,625.70/x - Step 3: Cross multiply
461,622.78x = 690,612.21 × 349,625.70 - Step 4: Simplify right side
461,622.78x = 241,455,777,349.80 - Step 5: Solve for x
x = 241,455,777,349.80/461,622.78 - Step 6: Final answer
x = 523,058.63
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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.