Finding the Fourth Proportional to 1,317,481.19, 1,976,418.61 and 418,952.24
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Solution
The fourth proportional to 1,317,481.19, 1,976,418.61 and 418,952.24 is: 628,490.95
Step by Step Solution
- Step 1: Write the proportion equation
1,317,481.19 : 1,976,418.61 = 418,952.24 : x - Step 2: Convert to fraction form
1,317,481.19/1,976,418.61 = 418,952.24/x - Step 3: Cross multiply
1,317,481.19x = 1,976,418.61 × 418,952.24 - Step 4: Simplify right side
1,317,481.19x = 828,025,003,837.19 - Step 5: Solve for x
x = 828,025,003,837.19/1,317,481.19 - Step 6: Final answer
x = 628,490.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.