Finding the Fourth Proportional to 1,647,894.82, 2,272,920.06 and 1,512,365.62
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Solution
The fourth proportional to 1,647,894.82, 2,272,920.06 and 1,512,365.62 is: 2,085,986.38
Step by Step Solution
- Step 1: Write the proportion equation
1,647,894.82 : 2,272,920.06 = 1,512,365.62 : x - Step 2: Convert to fraction form
1,647,894.82/2,272,920.06 = 1,512,365.62/x - Step 3: Cross multiply
1,647,894.82x = 2,272,920.06 × 1,512,365.62 - Step 4: Simplify right side
1,647,894.82x = 3,437,486,155,752.34 - Step 5: Solve for x
x = 3,437,486,155,752.34/1,647,894.82 - Step 6: Final answer
x = 2,085,986.38
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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.