Finding the Fourth Proportional to 863,647.47, 1,295,190.52 and 287,115.99
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Solution
The fourth proportional to 863,647.47, 1,295,190.52 and 287,115.99 is: 430,580.67
Step by Step Solution
- Step 1: Write the proportion equation
863,647.47 : 1,295,190.52 = 287,115.99 : x - Step 2: Convert to fraction form
863,647.47/1,295,190.52 = 287,115.99/x - Step 3: Cross multiply
863,647.47x = 1,295,190.52 × 287,115.99 - Step 4: Simplify right side
863,647.47x = 371,869,908,388.42 - Step 5: Solve for x
x = 371,869,908,388.42/863,647.47 - Step 6: Final answer
x = 430,580.67
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1.5x scale
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.