Finding the Fourth Proportional to 819,643.24, 1,229,508.60 and 258,634
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Solution
The fourth proportional to 819,643.24, 1,229,508.60 and 258,634 is: 387,964.80
Step by Step Solution
- Step 1: Write the proportion equation
819,643.24 : 1,229,508.60 = 258,634 : x - Step 2: Convert to fraction form
819,643.24/1,229,508.60 = 258,634/x - Step 3: Cross multiply
819,643.24x = 1,229,508.60 × 258,634 - Step 4: Simplify right side
819,643.24x = 317,992,727,252.40 - Step 5: Solve for x
x = 317,992,727,252.40/819,643.24 - Step 6: Final answer
x = 387,964.80
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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.