Finding the Fourth Proportional to 1,992,921.29, 2,750,318.60 and 1,121,812.19
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Solution
The fourth proportional to 1,992,921.29, 2,750,318.60 and 1,121,812.19 is: 1,548,149.91
Step by Step Solution
- Step 1: Write the proportion equation
1,992,921.29 : 2,750,318.60 = 1,121,812.19 : x - Step 2: Convert to fraction form
1,992,921.29/2,750,318.60 = 1,121,812.19/x - Step 3: Cross multiply
1,992,921.29x = 2,750,318.60 × 1,121,812.19 - Step 4: Simplify right side
1,992,921.29x = 3,085,340,924,535.72 - Step 5: Solve for x
x = 3,085,340,924,535.72/1,992,921.29 - Step 6: Final answer
x = 1,548,149.91
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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.