Finding the Fourth Proportional to 752,578.94, 1,128,906.35 and 212,873.81
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Solution
The fourth proportional to 752,578.94, 1,128,906.35 and 212,873.81 is: 319,321.45
Step by Step Solution
- Step 1: Write the proportion equation
752,578.94 : 1,128,906.35 = 212,873.81 : x - Step 2: Convert to fraction form
752,578.94/1,128,906.35 = 212,873.81/x - Step 3: Cross multiply
752,578.94x = 1,128,906.35 × 212,873.81 - Step 4: Simplify right side
752,578.94x = 240,314,595,857.69 - Step 5: Solve for x
x = 240,314,595,857.69/752,578.94 - Step 6: Final answer
x = 319,321.45
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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.