Finding the Fourth Proportional to 1,297,475.49, 1,790,509.05 and 716,738.60
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Solution
The fourth proportional to 1,297,475.49, 1,790,509.05 and 716,738.60 is: 989,095.33
Step by Step Solution
- Step 1: Write the proportion equation
1,297,475.49 : 1,790,509.05 = 716,738.60 : x - Step 2: Convert to fraction form
1,297,475.49/1,790,509.05 = 716,738.60/x - Step 3: Cross multiply
1,297,475.49x = 1,790,509.05 × 716,738.60 - Step 4: Simplify right side
1,297,475.49x = 1,283,326,947,099.90 - Step 5: Solve for x
x = 1,283,326,947,099.90/1,297,475.49 - Step 6: Final answer
x = 989,095.33
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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.