Finding the Fourth Proportional to 826,049.23, 1,238,513.11 and 420,244.09
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Solution
The fourth proportional to 826,049.23, 1,238,513.11 and 420,244.09 is: 630,080.86
Step by Step Solution
- Step 1: Write the proportion equation
826,049.23 : 1,238,513.11 = 420,244.09 : x - Step 2: Convert to fraction form
826,049.23/1,238,513.11 = 420,244.09/x - Step 3: Cross multiply
826,049.23x = 1,238,513.11 × 420,244.09 - Step 4: Simplify right side
826,049.23x = 520,477,810,718.13 - Step 5: Solve for x
x = 520,477,810,718.13/826,049.23 - Step 6: Final answer
x = 630,080.86
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.