Finding the Fourth Proportional to 542,744.20, 748,121.84 and 427,835.56
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Solution
The fourth proportional to 542,744.20, 748,121.84 and 427,835.56 is: 589,731.09
Step by Step Solution
- Step 1: Write the proportion equation
542,744.20 : 748,121.84 = 427,835.56 : x - Step 2: Convert to fraction form
542,744.20/748,121.84 = 427,835.56/x - Step 3: Cross multiply
542,744.20x = 748,121.84 × 427,835.56 - Step 4: Simplify right side
542,744.20x = 320,073,126,364.63 - Step 5: Solve for x
x = 320,073,126,364.63/542,744.20 - Step 6: Final answer
x = 589,731.09
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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.