Finding the Fourth Proportional to 1,370,438.21, 1,891,181.84 and 758,577.85
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Solution
The fourth proportional to 1,370,438.21, 1,891,181.84 and 758,577.85 is: 1,046,824.75
Step by Step Solution
- Step 1: Write the proportion equation
1,370,438.21 : 1,891,181.84 = 758,577.85 : x - Step 2: Convert to fraction form
1,370,438.21/1,891,181.84 = 758,577.85/x - Step 3: Cross multiply
1,370,438.21x = 1,891,181.84 × 758,577.85 - Step 4: Simplify right side
1,370,438.21x = 1,434,608,645,625.40 - Step 5: Solve for x
x = 1,434,608,645,625.40/1,370,438.21 - Step 6: Final answer
x = 1,046,824.75
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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.