Finding the Fourth Proportional to 1,297,486.50, 1,790,524.26 and 716,749.62
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Solution
The fourth proportional to 1,297,486.50, 1,790,524.26 and 716,749.62 is: 989,110.55
Step by Step Solution
- Step 1: Write the proportion equation
1,297,486.50 : 1,790,524.26 = 716,749.62 : x - Step 2: Convert to fraction form
1,297,486.50/1,790,524.26 = 716,749.62/x - Step 3: Cross multiply
1,297,486.50x = 1,790,524.26 × 716,749.62 - Step 4: Simplify right side
1,297,486.50x = 1,283,357,582,955.78 - Step 5: Solve for x
x = 1,283,357,582,955.78/1,297,486.50 - Step 6: Final answer
x = 989,110.55
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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.