Finding the Fourth Proportional to 1,918,577.91, 2,647,645.97 and 1,059,145.23
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Solution
The fourth proportional to 1,918,577.91, 2,647,645.97 and 1,059,145.23 is: 1,461,625.08
Step by Step Solution
- Step 1: Write the proportion equation
1,918,577.91 : 2,647,645.97 = 1,059,145.23 : x - Step 2: Convert to fraction form
1,918,577.91/2,647,645.97 = 1,059,145.23/x - Step 3: Cross multiply
1,918,577.91x = 2,647,645.97 × 1,059,145.23 - Step 4: Simplify right side
1,918,577.91x = 2,804,241,599,854.22 - Step 5: Solve for x
x = 2,804,241,599,854.22/1,918,577.91 - Step 6: Final answer
x = 1,461,625.08
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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.