Finding the Fourth Proportional to 1,976,718.60, 2,961,689.67 and 1,327,078.08
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Solution
The fourth proportional to 1,976,718.60, 2,961,689.67 and 1,327,078.08 is: 1,988,342.42
Step by Step Solution
- Step 1: Write the proportion equation
1,976,718.60 : 2,961,689.67 = 1,327,078.08 : x - Step 2: Convert to fraction form
1,976,718.60/2,961,689.67 = 1,327,078.08/x - Step 3: Cross multiply
1,976,718.60x = 2,961,689.67 × 1,327,078.08 - Step 4: Simplify right side
1,976,718.60x = 3,930,393,440,819.43 - Step 5: Solve for x
x = 3,930,393,440,819.43/1,976,718.60 - Step 6: Final answer
x = 1,988,342.42
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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.