Finding the Fourth Proportional to 1,393,165.90, 1,922,779.09 and 849,616.99
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Solution
The fourth proportional to 1,393,165.90, 1,922,779.09 and 849,616.99 is: 1,172,599.61
Step by Step Solution
- Step 1: Write the proportion equation
1,393,165.90 : 1,922,779.09 = 849,616.99 : x - Step 2: Convert to fraction form
1,393,165.90/1,922,779.09 = 849,616.99/x - Step 3: Cross multiply
1,393,165.90x = 1,922,779.09 × 849,616.99 - Step 4: Simplify right side
1,393,165.90x = 1,633,625,790,595.98 - Step 5: Solve for x
x = 1,633,625,790,595.98/1,393,165.90 - Step 6: Final answer
x = 1,172,599.61
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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.