Finding the Fourth Proportional to 1,103,138.19, 1,521,892.94 and 637,906.10
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Solution
The fourth proportional to 1,103,138.19, 1,521,892.94 and 637,906.10 is: 880,057.27
Step by Step Solution
- Step 1: Write the proportion equation
1,103,138.19 : 1,521,892.94 = 637,906.10 : x - Step 2: Convert to fraction form
1,103,138.19/1,521,892.94 = 637,906.10/x - Step 3: Cross multiply
1,103,138.19x = 1,521,892.94 × 637,906.10 - Step 4: Simplify right side
1,103,138.19x = 970,824,784,005.24 - Step 5: Solve for x
x = 970,824,784,005.24/1,103,138.19 - Step 6: Final answer
x = 880,057.27
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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.