Finding the Fourth Proportional to 770,873.84, 1,063,678.88 and 484,189.68
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Solution
The fourth proportional to 770,873.84, 1,063,678.88 and 484,189.68 is: 668,101.98
Step by Step Solution
- Step 1: Write the proportion equation
770,873.84 : 1,063,678.88 = 484,189.68 : x - Step 2: Convert to fraction form
770,873.84/1,063,678.88 = 484,189.68/x - Step 3: Cross multiply
770,873.84x = 1,063,678.88 × 484,189.68 - Step 4: Simplify right side
770,873.84x = 515,022,336,529.96 - Step 5: Solve for x
x = 515,022,336,529.96/770,873.84 - Step 6: Final answer
x = 668,101.98
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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.