Finding the Fourth Proportional to 2,164,918.98, 2,987,514.63 and 1,198,090.02
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Solution
The fourth proportional to 2,164,918.98, 2,987,514.63 and 1,198,090.02 is: 1,653,323.52
Step by Step Solution
- Step 1: Write the proportion equation
2,164,918.98 : 2,987,514.63 = 1,198,090.02 : x - Step 2: Convert to fraction form
2,164,918.98/2,987,514.63 = 1,198,090.02/x - Step 3: Cross multiply
2,164,918.98x = 2,987,514.63 × 1,198,090.02 - Step 4: Simplify right side
2,164,918.98x = 3,579,311,462,806.99 - Step 5: Solve for x
x = 3,579,311,462,806.99/2,164,918.98 - Step 6: Final answer
x = 1,653,323.52
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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.