Finding the Fourth Proportional to 2,657,078.20, 3,986,249.68 and 859,961.68
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Solution
The fourth proportional to 2,657,078.20, 3,986,249.68 and 859,961.68 is: 1,290,147.19
Step by Step Solution
- Step 1: Write the proportion equation
2,657,078.20 : 3,986,249.68 = 859,961.68 : x - Step 2: Convert to fraction form
2,657,078.20/3,986,249.68 = 859,961.68/x - Step 3: Cross multiply
2,657,078.20x = 3,986,249.68 × 859,961.68 - Step 4: Simplify right side
2,657,078.20x = 3,428,021,971,712.26 - Step 5: Solve for x
x = 3,428,021,971,712.26/2,657,078.20 - Step 6: Final answer
x = 1,290,147.19
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.