Finding the Fourth Proportional to 511,538.05, 705,913.18 and 282,116.52
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Solution
The fourth proportional to 511,538.05, 705,913.18 and 282,116.52 is: 389,315.65
Step by Step Solution
- Step 1: Write the proportion equation
511,538.05 : 705,913.18 = 282,116.52 : x - Step 2: Convert to fraction form
511,538.05/705,913.18 = 282,116.52/x - Step 3: Cross multiply
511,538.05x = 705,913.18 × 282,116.52 - Step 4: Simplify right side
511,538.05x = 199,149,769,058.44 - Step 5: Solve for x
x = 199,149,769,058.44/511,538.05 - Step 6: Final answer
x = 389,315.65
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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.