Finding the Fourth Proportional to 1,115,414.28, 1,539,270.54 and 606,115.44
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Solution
The fourth proportional to 1,115,414.28, 1,539,270.54 and 606,115.44 is: 836,438.67
Step by Step Solution
- Step 1: Write the proportion equation
1,115,414.28 : 1,539,270.54 = 606,115.44 : x - Step 2: Convert to fraction form
1,115,414.28/1,539,270.54 = 606,115.44/x - Step 3: Cross multiply
1,115,414.28x = 1,539,270.54 × 606,115.44 - Step 4: Simplify right side
1,115,414.28x = 932,975,640,631.14 - Step 5: Solve for x
x = 932,975,640,631.14/1,115,414.28 - Step 6: Final answer
x = 836,438.67
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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.