Finding the Fourth Proportional to 738,487.60, 1,107,258.08 and 311,907.84
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Solution
The fourth proportional to 738,487.60, 1,107,258.08 and 311,907.84 is: 467,661.85
Step by Step Solution
- Step 1: Write the proportion equation
738,487.60 : 1,107,258.08 = 311,907.84 : x - Step 2: Convert to fraction form
738,487.60/1,107,258.08 = 311,907.84/x - Step 3: Cross multiply
738,487.60x = 1,107,258.08 × 311,907.84 - Step 4: Simplify right side
738,487.60x = 345,362,476,055.35 - Step 5: Solve for x
x = 345,362,476,055.35/738,487.60 - Step 6: Final answer
x = 467,661.85
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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.