Finding the Fourth Proportional to 1,381,771.25, 1,906,848.16 and 801,106.95
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Solution
The fourth proportional to 1,381,771.25, 1,906,848.16 and 801,106.95 is: 1,105,529.82
Step by Step Solution
- Step 1: Write the proportion equation
1,381,771.25 : 1,906,848.16 = 801,106.95 : x - Step 2: Convert to fraction form
1,381,771.25/1,906,848.16 = 801,106.95/x - Step 3: Cross multiply
1,381,771.25x = 1,906,848.16 × 801,106.95 - Step 4: Simplify right side
1,381,771.25x = 1,527,589,311,567.94 - Step 5: Solve for x
x = 1,527,589,311,567.94/1,381,771.25 - Step 6: Final answer
x = 1,105,529.82
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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.