Finding the Fourth Proportional to 2,577,122.24, 3,556,331.28 and 1,431,276.40
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Solution
The fourth proportional to 2,577,122.24, 3,556,331.28 and 1,431,276.40 is: 1,975,107.33
Step by Step Solution
- Step 1: Write the proportion equation
2,577,122.24 : 3,556,331.28 = 1,431,276.40 : x - Step 2: Convert to fraction form
2,577,122.24/3,556,331.28 = 1,431,276.40/x - Step 3: Cross multiply
2,577,122.24x = 3,556,331.28 × 1,431,276.40 - Step 4: Simplify right side
2,577,122.24x = 5,090,093,031,645.79 - Step 5: Solve for x
x = 5,090,093,031,645.79/2,577,122.24 - Step 6: Final answer
x = 1,975,107.33
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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.