Finding the Fourth Proportional to 1,991,616.16, 2,987,426.07 and 853,639.90
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Solution
The fourth proportional to 1,991,616.16, 2,987,426.07 and 853,639.90 is: 1,280,460.63
Step by Step Solution
- Step 1: Write the proportion equation
1,991,616.16 : 2,987,426.07 = 853,639.90 : x - Step 2: Convert to fraction form
1,991,616.16/2,987,426.07 = 853,639.90/x - Step 3: Cross multiply
1,991,616.16x = 2,987,426.07 × 853,639.90 - Step 4: Simplify right side
1,991,616.16x = 2,550,186,091,652.19 - Step 5: Solve for x
x = 2,550,186,091,652.19/1,991,616.16 - Step 6: Final answer
x = 1,280,460.63
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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.