Finding the Fourth Proportional to 547,258.70, 819,138.45 and 389,794.70
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Solution
The fourth proportional to 547,258.70, 819,138.45 and 389,794.70 is: 583,445.87
Step by Step Solution
- Step 1: Write the proportion equation
547,258.70 : 819,138.45 = 389,794.70 : x - Step 2: Convert to fraction form
547,258.70/819,138.45 = 389,794.70/x - Step 3: Cross multiply
547,258.70x = 819,138.45 × 389,794.70 - Step 4: Simplify right side
547,258.70x = 319,295,826,376.22 - Step 5: Solve for x
x = 319,295,826,376.22/547,258.70 - Step 6: Final answer
x = 583,445.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.