Finding the Fourth Proportional to 1,911,918.99, 2,638,475.37 and 1,040,780.37
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Solution
The fourth proportional to 1,911,918.99, 2,638,475.37 and 1,040,780.37 is: 1,436,291.70
Step by Step Solution
- Step 1: Write the proportion equation
1,911,918.99 : 2,638,475.37 = 1,040,780.37 : x - Step 2: Convert to fraction form
1,911,918.99/2,638,475.37 = 1,040,780.37/x - Step 3: Cross multiply
1,911,918.99x = 2,638,475.37 × 1,040,780.37 - Step 4: Simplify right side
1,911,918.99x = 2,746,073,371,824.49 - Step 5: Solve for x
x = 2,746,073,371,824.49/1,911,918.99 - Step 6: Final answer
x = 1,436,291.70
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.