Finding the Fourth Proportional to 998,748.75, 1,378,278.15 and 546,039.75
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Solution
The fourth proportional to 998,748.75, 1,378,278.15 and 546,039.75 is: 753,537.52
Step by Step Solution
- Step 1: Write the proportion equation
998,748.75 : 1,378,278.15 = 546,039.75 : x - Step 2: Convert to fraction form
998,748.75/1,378,278.15 = 546,039.75/x - Step 3: Cross multiply
998,748.75x = 1,378,278.15 × 546,039.75 - Step 4: Simplify right side
998,748.75x = 752,594,656,456.46 - Step 5: Solve for x
x = 752,594,656,456.46/998,748.75 - Step 6: Final answer
x = 753,537.52
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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.