Finding the Fourth Proportional to 2,190,634.36, 3,023,191.51 and 1,319,743.24
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Solution
The fourth proportional to 2,190,634.36, 3,023,191.51 and 1,319,743.24 is: 1,821,315.61
Step by Step Solution
- Step 1: Write the proportion equation
2,190,634.36 : 3,023,191.51 = 1,319,743.24 : x - Step 2: Convert to fraction form
2,190,634.36/3,023,191.51 = 1,319,743.24/x - Step 3: Cross multiply
2,190,634.36x = 3,023,191.51 × 1,319,743.24 - Step 4: Simplify right side
2,190,634.36x = 3,989,836,557,377.85 - Step 5: Solve for x
x = 3,989,836,557,377.85/2,190,634.36 - Step 6: Final answer
x = 1,821,315.61
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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.