Finding the Fourth Proportional to 819,135.99, 1,229,257.52 and 286,661.63
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Solution
The fourth proportional to 819,135.99, 1,229,257.52 and 286,661.63 is: 430,186.16
Step by Step Solution
- Step 1: Write the proportion equation
819,135.99 : 1,229,257.52 = 286,661.63 : x - Step 2: Convert to fraction form
819,135.99/1,229,257.52 = 286,661.63/x - Step 3: Cross multiply
819,135.99x = 1,229,257.52 × 286,661.63 - Step 4: Simplify right side
819,135.99x = 352,380,967,087.77 - Step 5: Solve for x
x = 352,380,967,087.77/819,135.99 - Step 6: Final answer
x = 430,186.16
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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.