Finding the Fourth Proportional to 2,119,211.28, 2,925,151.92 and 1,440,541.44
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Solution
The fourth proportional to 2,119,211.28, 2,925,151.92 and 1,440,541.44 is: 1,988,382.47
Step by Step Solution
- Step 1: Write the proportion equation
2,119,211.28 : 2,925,151.92 = 1,440,541.44 : x - Step 2: Convert to fraction form
2,119,211.28/2,925,151.92 = 1,440,541.44/x - Step 3: Cross multiply
2,119,211.28x = 2,925,151.92 × 1,440,541.44 - Step 4: Simplify right side
2,119,211.28x = 4,213,802,559,055.56 - Step 5: Solve for x
x = 4,213,802,559,055.56/2,119,211.28 - Step 6: Final answer
x = 1,988,382.47
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.