Finding the Fourth Proportional to 1,253,378.36, 1,729,479.66 and 716,730.68
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Solution
The fourth proportional to 1,253,378.36, 1,729,479.66 and 716,730.68 is: 988,983.99
Step by Step Solution
- Step 1: Write the proportion equation
1,253,378.36 : 1,729,479.66 = 716,730.68 : x - Step 2: Convert to fraction form
1,253,378.36/1,729,479.66 = 716,730.68/x - Step 3: Cross multiply
1,253,378.36x = 1,729,479.66 × 716,730.68 - Step 4: Simplify right side
1,253,378.36x = 1,239,571,132,757.97 - Step 5: Solve for x
x = 1,239,571,132,757.97/1,253,378.36 - Step 6: Final answer
x = 988,983.99
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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.