Finding the Fourth Proportional to 998,481.44, 1,378,626 and 617,031.20
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Solution
The fourth proportional to 998,481.44, 1,378,626 and 617,031.20 is: 851,948.99
Step by Step Solution
- Step 1: Write the proportion equation
998,481.44 : 1,378,626 = 617,031.20 : x - Step 2: Convert to fraction form
998,481.44/1,378,626 = 617,031.20/x - Step 3: Cross multiply
998,481.44x = 1,378,626 × 617,031.20 - Step 4: Simplify right side
998,481.44x = 850,655,255,131.20 - Step 5: Solve for x
x = 850,655,255,131.20/998,481.44 - Step 6: Final answer
x = 851,948.99
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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.