Finding the Fourth Proportional to 1,256,378.68, 1,884,778.16 and 986,495.88
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Solution
The fourth proportional to 1,256,378.68, 1,884,778.16 and 986,495.88 is: 1,479,908.82
Step by Step Solution
- Step 1: Write the proportion equation
1,256,378.68 : 1,884,778.16 = 986,495.88 : x - Step 2: Convert to fraction form
1,256,378.68/1,884,778.16 = 986,495.88/x - Step 3: Cross multiply
1,256,378.68x = 1,884,778.16 × 986,495.88 - Step 4: Simplify right side
1,256,378.68x = 1,859,325,889,553.98 - Step 5: Solve for x
x = 1,859,325,889,553.98/1,256,378.68 - Step 6: Final answer
x = 1,479,908.82
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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.