Finding the Fourth Proportional to 1,129,646.99, 1,558,922.90 and 620,353.01
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Solution
The fourth proportional to 1,129,646.99, 1,558,922.90 and 620,353.01 is: 856,092.67
Step by Step Solution
- Step 1: Write the proportion equation
1,129,646.99 : 1,558,922.90 = 620,353.01 : x - Step 2: Convert to fraction form
1,129,646.99/1,558,922.90 = 620,353.01/x - Step 3: Cross multiply
1,129,646.99x = 1,558,922.90 × 620,353.01 - Step 4: Simplify right side
1,129,646.99x = 967,082,514,168.47 - Step 5: Solve for x
x = 967,082,514,168.47/1,129,646.99 - Step 6: Final answer
x = 856,092.67
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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.