Finding the Fourth Proportional to 1,157,137.86, 1,735,820.98 and 398,879.49
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Solution
The fourth proportional to 1,157,137.86, 1,735,820.98 and 398,879.49 is: 598,358.60
Step by Step Solution
- Step 1: Write the proportion equation
1,157,137.86 : 1,735,820.98 = 398,879.49 : x - Step 2: Convert to fraction form
1,157,137.86/1,735,820.98 = 398,879.49/x - Step 3: Cross multiply
1,157,137.86x = 1,735,820.98 × 398,879.49 - Step 4: Simplify right side
1,157,137.86x = 692,383,387,233.70 - Step 5: Solve for x
x = 692,383,387,233.70/1,157,137.86 - Step 6: Final answer
x = 598,358.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.