Finding the Fourth Proportional to 1,102,186.76, 1,520,933.74 and 618,658.48
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Solution
The fourth proportional to 1,102,186.76, 1,520,933.74 and 618,658.48 is: 853,701.55
Step by Step Solution
- Step 1: Write the proportion equation
1,102,186.76 : 1,520,933.74 = 618,658.48 : x - Step 2: Convert to fraction form
1,102,186.76/1,520,933.74 = 618,658.48/x - Step 3: Cross multiply
1,102,186.76x = 1,520,933.74 × 618,658.48 - Step 4: Simplify right side
1,102,186.76x = 940,938,550,420.14 - Step 5: Solve for x
x = 940,938,550,420.14/1,102,186.76 - Step 6: Final answer
x = 853,701.55
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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.