Finding the Fourth Proportional to 1,205,235.87, 1,663,220.97 and 661,380.81
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Solution
The fourth proportional to 1,205,235.87, 1,663,220.97 and 661,380.81 is: 912,703.03
Step by Step Solution
- Step 1: Write the proportion equation
1,205,235.87 : 1,663,220.97 = 661,380.81 : x - Step 2: Convert to fraction form
1,205,235.87/1,663,220.97 = 661,380.81/x - Step 3: Cross multiply
1,205,235.87x = 1,663,220.97 × 661,380.81 - Step 4: Simplify right side
1,205,235.87x = 1,100,022,432,347.59 - Step 5: Solve for x
x = 1,100,022,432,347.59/1,205,235.87 - Step 6: Final answer
x = 912,703.03
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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.