Finding the Fourth Proportional to 998,628.75, 1,378,107.68 and 545,919.75
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Solution
The fourth proportional to 998,628.75, 1,378,107.68 and 545,919.75 is: 753,369.26
Step by Step Solution
- Step 1: Write the proportion equation
998,628.75 : 1,378,107.68 = 545,919.75 : x - Step 2: Convert to fraction form
998,628.75/1,378,107.68 = 545,919.75/x - Step 3: Cross multiply
998,628.75x = 1,378,107.68 × 545,919.75 - Step 4: Simplify right side
998,628.75x = 752,336,197,409.08 - Step 5: Solve for x
x = 752,336,197,409.08/998,628.75 - Step 6: Final answer
x = 753,369.26
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.