Finding the Fourth Proportional to 1,253,385.36, 1,729,489.32 and 716,737.68
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Solution
The fourth proportional to 1,253,385.36, 1,729,489.32 and 716,737.68 is: 988,993.65
Step by Step Solution
- Step 1: Write the proportion equation
1,253,385.36 : 1,729,489.32 = 716,737.68 : x - Step 2: Convert to fraction form
1,253,385.36/1,729,489.32 = 716,737.68/x - Step 3: Cross multiply
1,253,385.36x = 1,729,489.32 × 716,737.68 - Step 4: Simplify right side
1,253,385.36x = 1,239,590,162,801.58 - Step 5: Solve for x
x = 1,239,590,162,801.58/1,253,385.36 - Step 6: Final answer
x = 988,993.65
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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.