Finding the Fourth Proportional to 1,445,721.66, 1,994,441.67 and 872,578.62
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Solution
The fourth proportional to 1,445,721.66, 1,994,441.67 and 872,578.62 is: 1,203,763.63
Step by Step Solution
- Step 1: Write the proportion equation
1,445,721.66 : 1,994,441.67 = 872,578.62 : x - Step 2: Convert to fraction form
1,445,721.66/1,994,441.67 = 872,578.62/x - Step 3: Cross multiply
1,445,721.66x = 1,994,441.67 × 872,578.62 - Step 4: Simplify right side
1,445,721.66x = 1,740,307,160,079.10 - Step 5: Solve for x
x = 1,740,307,160,079.10/1,445,721.66 - Step 6: Final answer
x = 1,203,763.63
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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.