Finding the Fourth Proportional to 1,131,117.08, 1,560,971.36 and 621,832.28
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Solution
The fourth proportional to 1,131,117.08, 1,560,971.36 and 621,832.28 is: 858,144.92
Step by Step Solution
- Step 1: Write the proportion equation
1,131,117.08 : 1,560,971.36 = 621,832.28 : x - Step 2: Convert to fraction form
1,131,117.08/1,560,971.36 = 621,832.28/x - Step 3: Cross multiply
1,131,117.08x = 1,560,971.36 × 621,832.28 - Step 4: Simplify right side
1,131,117.08x = 970,662,379,803.50 - Step 5: Solve for x
x = 970,662,379,803.50/1,131,117.08 - Step 6: Final answer
x = 858,144.92
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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.