Finding the Fourth Proportional to 1,457,578.42, 2,011,452.93 and 812,998.12
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Solution
The fourth proportional to 1,457,578.42, 2,011,452.93 and 812,998.12 is: 1,121,934.46
Step by Step Solution
- Step 1: Write the proportion equation
1,457,578.42 : 2,011,452.93 = 812,998.12 : x - Step 2: Convert to fraction form
1,457,578.42/2,011,452.93 = 812,998.12/x - Step 3: Cross multiply
1,457,578.42x = 2,011,452.93 × 812,998.12 - Step 4: Simplify right side
1,457,578.42x = 1,635,307,450,558.49 - Step 5: Solve for x
x = 1,635,307,450,558.49/1,457,578.42 - Step 6: Final answer
x = 1,121,934.46
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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.