Finding the Fourth Proportional to 1,152,181.36, 1,589,566.80 and 721,712.08
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Solution
The fourth proportional to 1,152,181.36, 1,589,566.80 and 721,712.08 is: 995,684.88
Step by Step Solution
- Step 1: Write the proportion equation
1,152,181.36 : 1,589,566.80 = 721,712.08 : x - Step 2: Convert to fraction form
1,152,181.36/1,589,566.80 = 721,712.08/x - Step 3: Cross multiply
1,152,181.36x = 1,589,566.80 × 721,712.08 - Step 4: Simplify right side
1,152,181.36x = 1,147,209,553,579.11 - Step 5: Solve for x
x = 1,147,209,553,579.11/1,152,181.36 - Step 6: Final answer
x = 995,684.88
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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.