Finding the Fourth Proportional to 1,591,678.08, 2,196,979.20 and 1,271,617.92
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Solution
The fourth proportional to 1,591,678.08, 2,196,979.20 and 1,271,617.92 is: 1,755,202.99
Step by Step Solution
- Step 1: Write the proportion equation
1,591,678.08 : 2,196,979.20 = 1,271,617.92 : x - Step 2: Convert to fraction form
1,591,678.08/2,196,979.20 = 1,271,617.92/x - Step 3: Cross multiply
1,591,678.08x = 2,196,979.20 × 1,271,617.92 - Step 4: Simplify right side
1,591,678.08x = 2,793,718,120,587.26 - Step 5: Solve for x
x = 2,793,718,120,587.26/1,591,678.08 - Step 6: Final answer
x = 1,755,202.99
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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.