Finding the Fourth Proportional to 1,769,486.36, 2,642,227.58 and 1,405,572.29
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Solution
The fourth proportional to 1,769,486.36, 2,642,227.58 and 1,405,572.29 is: 2,098,824.81
Step by Step Solution
- Step 1: Write the proportion equation
1,769,486.36 : 2,642,227.58 = 1,405,572.29 : x - Step 2: Convert to fraction form
1,769,486.36/2,642,227.58 = 1,405,572.29/x - Step 3: Cross multiply
1,769,486.36x = 2,642,227.58 × 1,405,572.29 - Step 4: Simplify right side
1,769,486.36x = 3,713,841,870,532.91 - Step 5: Solve for x
x = 3,713,841,870,532.91/1,769,486.36 - Step 6: Final answer
x = 2,098,824.81
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.