Finding the Fourth Proportional to 1,911,482.73, 2,865,617.06 and 1,278,464.49
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Solution
The fourth proportional to 1,911,482.73, 2,865,617.06 and 1,278,464.49 is: 1,916,621.89
Step by Step Solution
- Step 1: Write the proportion equation
1,911,482.73 : 2,865,617.06 = 1,278,464.49 : x - Step 2: Convert to fraction form
1,911,482.73/2,865,617.06 = 1,278,464.49/x - Step 3: Cross multiply
1,911,482.73x = 2,865,617.06 × 1,278,464.49 - Step 4: Simplify right side
1,911,482.73x = 3,663,589,646,755.88 - Step 5: Solve for x
x = 3,663,589,646,755.88/1,911,482.73 - Step 6: Final answer
x = 1,916,621.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.