Finding the Fourth Proportional to 726,129.80, 1,089,194.70 and 352,881.80
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Solution
The fourth proportional to 726,129.80, 1,089,194.70 and 352,881.80 is: 529,322.70
Step by Step Solution
- Step 1: Write the proportion equation
726,129.80 : 1,089,194.70 = 352,881.80 : x - Step 2: Convert to fraction form
726,129.80/1,089,194.70 = 352,881.80/x - Step 3: Cross multiply
726,129.80x = 1,089,194.70 × 352,881.80 - Step 4: Simplify right side
726,129.80x = 384,356,986,286.46 - Step 5: Solve for x
x = 384,356,986,286.46/726,129.80 - Step 6: Final answer
x = 529,322.70
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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.