Finding the Fourth Proportional to 1,207,530.24, 1,811,622.12 and 408,811.92
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Solution
The fourth proportional to 1,207,530.24, 1,811,622.12 and 408,811.92 is: 613,328.51
Step by Step Solution
- Step 1: Write the proportion equation
1,207,530.24 : 1,811,622.12 = 408,811.92 : x - Step 2: Convert to fraction form
1,207,530.24/1,811,622.12 = 408,811.92/x - Step 3: Cross multiply
1,207,530.24x = 1,811,622.12 × 408,811.92 - Step 4: Simplify right side
1,207,530.24x = 740,612,717,191.67 - Step 5: Solve for x
x = 740,612,717,191.67/1,207,530.24 - Step 6: Final answer
x = 613,328.51
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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.