Finding the Fourth Proportional to 1,212,325.92, 1,673,022.96 and 668,463.12
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Solution
The fourth proportional to 1,212,325.92, 1,673,022.96 and 668,463.12 is: 922,486.38
Step by Step Solution
- Step 1: Write the proportion equation
1,212,325.92 : 1,673,022.96 = 668,463.12 : x - Step 2: Convert to fraction form
1,212,325.92/1,673,022.96 = 668,463.12/x - Step 3: Cross multiply
1,212,325.92x = 1,673,022.96 × 668,463.12 - Step 4: Simplify right side
1,212,325.92x = 1,118,354,147,673.24 - Step 5: Solve for x
x = 1,118,354,147,673.24/1,212,325.92 - Step 6: Final answer
x = 922,486.38
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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.