Finding the Fourth Proportional to 1,428,466.68, 1,971,313.74 and 783,849.24
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Solution
The fourth proportional to 1,428,466.68, 1,971,313.74 and 783,849.24 is: 1,081,728.26
Step by Step Solution
- Step 1: Write the proportion equation
1,428,466.68 : 1,971,313.74 = 783,849.24 : x - Step 2: Convert to fraction form
1,428,466.68/1,971,313.74 = 783,849.24/x - Step 3: Cross multiply
1,428,466.68x = 1,971,313.74 × 783,849.24 - Step 4: Simplify right side
1,428,466.68x = 1,545,212,776,900.56 - Step 5: Solve for x
x = 1,545,212,776,900.56/1,428,466.68 - Step 6: Final answer
x = 1,081,728.26
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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.