Finding the Fourth Proportional to 865,944.22, 1,194,226.58 and 721,230.44
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Solution
The fourth proportional to 865,944.22, 1,194,226.58 and 721,230.44 is: 994,651.32
Step by Step Solution
- Step 1: Write the proportion equation
865,944.22 : 1,194,226.58 = 721,230.44 : x - Step 2: Convert to fraction form
865,944.22/1,194,226.58 = 721,230.44/x - Step 3: Cross multiply
865,944.22x = 1,194,226.58 × 721,230.44 - Step 4: Simplify right side
865,944.22x = 861,312,561,753.10 - Step 5: Solve for x
x = 861,312,561,753.10/865,944.22 - Step 6: Final answer
x = 994,651.32
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1.5x scale
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.