Finding the Fourth Proportional to 387,233.80, 580,850.70 and 363,905.80
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Solution
The fourth proportional to 387,233.80, 580,850.70 and 363,905.80 is: 545,858.70
Step by Step Solution
- Step 1: Write the proportion equation
387,233.80 : 580,850.70 = 363,905.80 : x - Step 2: Convert to fraction form
387,233.80/580,850.70 = 363,905.80/x - Step 3: Cross multiply
387,233.80x = 580,850.70 × 363,905.80 - Step 4: Simplify right side
387,233.80x = 211,374,938,664.06 - Step 5: Solve for x
x = 211,374,938,664.06/387,233.80 - Step 6: Final answer
x = 545,858.70
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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.