Finding the Fourth Proportional to 1,129,412.52, 1,558,614.42 and 620,116.92
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Solution
The fourth proportional to 1,129,412.52, 1,558,614.42 and 620,116.92 is: 855,775.15
Step by Step Solution
- Step 1: Write the proportion equation
1,129,412.52 : 1,558,614.42 = 620,116.92 : x - Step 2: Convert to fraction form
1,129,412.52/1,558,614.42 = 620,116.92/x - Step 3: Cross multiply
1,129,412.52x = 1,558,614.42 × 620,116.92 - Step 4: Simplify right side
1,129,412.52x = 966,523,173,597.99 - Step 5: Solve for x
x = 966,523,173,597.99/1,129,412.52 - Step 6: Final answer
x = 855,775.15
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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.