Finding the Fourth Proportional to 1,113,997.92, 1,537,341.57 and 678,435.68
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Solution
The fourth proportional to 1,113,997.92, 1,537,341.57 and 678,435.68 is: 936,256.12
Step by Step Solution
- Step 1: Write the proportion equation
1,113,997.92 : 1,537,341.57 = 678,435.68 : x - Step 2: Convert to fraction form
1,113,997.92/1,537,341.57 = 678,435.68/x - Step 3: Cross multiply
1,113,997.92x = 1,537,341.57 × 678,435.68 - Step 4: Simplify right side
1,113,997.92x = 1,042,987,373,435.22 - Step 5: Solve for x
x = 1,042,987,373,435.22/1,113,997.92 - Step 6: Final answer
x = 936,256.12
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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.