Finding the Fourth Proportional to 1,191,059.21, 1,643,672.09 and 647,194.99
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Solution
The fourth proportional to 1,191,059.21, 1,643,672.09 and 647,194.99 is: 893,134.73
Step by Step Solution
- Step 1: Write the proportion equation
1,191,059.21 : 1,643,672.09 = 647,194.99 : x - Step 2: Convert to fraction form
1,191,059.21/1,643,672.09 = 647,194.99/x - Step 3: Cross multiply
1,191,059.21x = 1,643,672.09 × 647,194.99 - Step 4: Simplify right side
1,191,059.21x = 1,063,776,341,850.83 - Step 5: Solve for x
x = 1,063,776,341,850.83/1,191,059.21 - Step 6: Final answer
x = 893,134.73
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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.