Finding the Fourth Proportional to 1,728,207.80, 2,587,775.70 and 1,220,024.60
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Solution
The fourth proportional to 1,728,207.80, 2,587,775.70 and 1,220,024.60 is: 1,826,834.72
Step by Step Solution
- Step 1: Write the proportion equation
1,728,207.80 : 2,587,775.70 = 1,220,024.60 : x - Step 2: Convert to fraction form
1,728,207.80/2,587,775.70 = 1,220,024.60/x - Step 3: Cross multiply
1,728,207.80x = 2,587,775.70 × 1,220,024.60 - Step 4: Simplify right side
1,728,207.80x = 3,157,150,013,282.22 - Step 5: Solve for x
x = 3,157,150,013,282.22/1,728,207.80 - Step 6: Final answer
x = 1,826,834.72
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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.