Finding the Fourth Proportional to 2,164,924.18, 2,987,601.16 and 1,198,121.14
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Solution
The fourth proportional to 2,164,924.18, 2,987,601.16 and 1,198,121.14 is: 1,653,410.38
Step by Step Solution
- Step 1: Write the proportion equation
2,164,924.18 : 2,987,601.16 = 1,198,121.14 : x - Step 2: Convert to fraction form
2,164,924.18/2,987,601.16 = 1,198,121.14/x - Step 3: Cross multiply
2,164,924.18x = 2,987,601.16 × 1,198,121.14 - Step 4: Simplify right side
2,164,924.18x = 3,579,508,107,684.52 - Step 5: Solve for x
x = 3,579,508,107,684.52/2,164,924.18 - Step 6: Final answer
x = 1,653,410.38
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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.