Finding the Fourth Proportional to 1,278,433.61, 1,764,540.32 and 734,884.70
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Solution
The fourth proportional to 1,278,433.61, 1,764,540.32 and 734,884.70 is: 1,014,314.45
Step by Step Solution
- Step 1: Write the proportion equation
1,278,433.61 : 1,764,540.32 = 734,884.70 : x - Step 2: Convert to fraction form
1,278,433.61/1,764,540.32 = 734,884.70/x - Step 3: Cross multiply
1,278,433.61x = 1,764,540.32 × 734,884.70 - Step 4: Simplify right side
1,278,433.61x = 1,296,733,683,701.10 - Step 5: Solve for x
x = 1,296,733,683,701.10/1,278,433.61 - Step 6: Final answer
x = 1,014,314.45
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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.