Finding the Fourth Proportional to 1,428,916.13, 2,151,927.97 and 1,301,370.29
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Solution
The fourth proportional to 1,428,916.13, 2,151,927.97 and 1,301,370.29 is: 1,959,845.70
Step by Step Solution
- Step 1: Write the proportion equation
1,428,916.13 : 2,151,927.97 = 1,301,370.29 : x - Step 2: Convert to fraction form
1,428,916.13/2,151,927.97 = 1,301,370.29/x - Step 3: Cross multiply
1,428,916.13x = 2,151,927.97 × 1,301,370.29 - Step 4: Simplify right side
1,428,916.13x = 2,800,455,126,378.01 - Step 5: Solve for x
x = 2,800,455,126,378.01/1,428,916.13 - Step 6: Final answer
x = 1,959,845.70
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.