Finding the Fourth Proportional to 1,205,669.63, 1,663,067.26 and 715,291.95
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Solution
The fourth proportional to 1,205,669.63, 1,663,067.26 and 715,291.95 is: 986,653.88
Step by Step Solution
- Step 1: Write the proportion equation
1,205,669.63 : 1,663,067.26 = 715,291.95 : x - Step 2: Convert to fraction form
1,205,669.63/1,663,067.26 = 715,291.95/x - Step 3: Cross multiply
1,205,669.63x = 1,663,067.26 × 715,291.95 - Step 4: Simplify right side
1,205,669.63x = 1,189,578,623,386.56 - Step 5: Solve for x
x = 1,189,578,623,386.56/1,205,669.63 - Step 6: Final answer
x = 986,653.88
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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.