Finding the Fourth Proportional to 526,138.08, 726,069.60 and 284,420.80
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Solution
The fourth proportional to 526,138.08, 726,069.60 and 284,420.80 is: 392,500.19
Step by Step Solution
- Step 1: Write the proportion equation
526,138.08 : 726,069.60 = 284,420.80 : x - Step 2: Convert to fraction form
526,138.08/726,069.60 = 284,420.80/x - Step 3: Cross multiply
526,138.08x = 726,069.60 × 284,420.80 - Step 4: Simplify right side
526,138.08x = 206,509,296,487.68 - Step 5: Solve for x
x = 206,509,296,487.68/526,138.08 - Step 6: Final answer
x = 392,500.19
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1.5x scale
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.