Finding the Fourth Proportional to 1,157,138.36, 1,735,821.74 and 398,880
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Solution
The fourth proportional to 1,157,138.36, 1,735,821.74 and 398,880 is: 598,359.37
Step by Step Solution
- Step 1: Write the proportion equation
1,157,138.36 : 1,735,821.74 = 398,880 : x - Step 2: Convert to fraction form
1,157,138.36/1,735,821.74 = 398,880/x - Step 3: Cross multiply
1,157,138.36x = 1,735,821.74 × 398,880 - Step 4: Simplify right side
1,157,138.36x = 692,384,573,656.80 - Step 5: Solve for x
x = 692,384,573,656.80/1,157,138.36 - Step 6: Final answer
x = 598,359.37
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.