Finding the Fourth Proportional to 2,129,269.23, 2,939,445.30 and 1,313,922.01
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Solution
The fourth proportional to 2,129,269.23, 2,939,445.30 and 1,313,922.01 is: 1,813,862.63
Step by Step Solution
- Step 1: Write the proportion equation
2,129,269.23 : 2,939,445.30 = 1,313,922.01 : x - Step 2: Convert to fraction form
2,129,269.23/2,939,445.30 = 1,313,922.01/x - Step 3: Cross multiply
2,129,269.23x = 2,939,445.30 × 1,313,922.01 - Step 4: Simplify right side
2,129,269.23x = 3,862,201,876,861.05 - Step 5: Solve for x
x = 3,862,201,876,861.05/2,129,269.23 - Step 6: Final answer
x = 1,813,862.63
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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.