Finding the Fourth Proportional to 1,392,895.05, 1,922,593.74 and 820,267.36
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Solution
The fourth proportional to 1,392,895.05, 1,922,593.74 and 820,267.36 is: 1,132,203.67
Step by Step Solution
- Step 1: Write the proportion equation
1,392,895.05 : 1,922,593.74 = 820,267.36 : x - Step 2: Convert to fraction form
1,392,895.05/1,922,593.74 = 820,267.36/x - Step 3: Cross multiply
1,392,895.05x = 1,922,593.74 × 820,267.36 - Step 4: Simplify right side
1,392,895.05x = 1,577,040,891,462.33 - Step 5: Solve for x
x = 1,577,040,891,462.33/1,392,895.05 - Step 6: Final answer
x = 1,132,203.67
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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.