Finding the Fourth Proportional to 863,645.47, 1,295,187.52 and 287,113.99
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Solution
The fourth proportional to 863,645.47, 1,295,187.52 and 287,113.99 is: 430,577.67
Step by Step Solution
- Step 1: Write the proportion equation
863,645.47 : 1,295,187.52 = 287,113.99 : x - Step 2: Convert to fraction form
863,645.47/1,295,187.52 = 287,113.99/x - Step 3: Cross multiply
863,645.47x = 1,295,187.52 × 287,113.99 - Step 4: Simplify right side
863,645.47x = 371,866,456,665.41 - Step 5: Solve for x
x = 371,866,456,665.41/863,645.47 - Step 6: Final answer
x = 430,577.67
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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.