Finding the Fourth Proportional to 1,918,578.53, 2,647,646.84 and 1,059,145.85
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Solution
The fourth proportional to 1,918,578.53, 2,647,646.84 and 1,059,145.85 is: 1,461,625.95
Step by Step Solution
- Step 1: Write the proportion equation
1,918,578.53 : 2,647,646.84 = 1,059,145.85 : x - Step 2: Convert to fraction form
1,918,578.53/2,647,646.84 = 1,059,145.85/x - Step 3: Cross multiply
1,918,578.53x = 2,647,646.84 × 1,059,145.85 - Step 4: Simplify right side
1,918,578.53x = 2,804,244,164,175.00 - Step 5: Solve for x
x = 2,804,244,164,175.00/1,918,578.53 - Step 6: Final answer
x = 1,461,625.95
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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.