Finding the Fourth Proportional to 535,850.72, 739,137.63 and 317,905.09
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Solution
The fourth proportional to 535,850.72, 739,137.63 and 317,905.09 is: 438,509.47
Step by Step Solution
- Step 1: Write the proportion equation
535,850.72 : 739,137.63 = 317,905.09 : x - Step 2: Convert to fraction form
535,850.72/739,137.63 = 317,905.09/x - Step 3: Cross multiply
535,850.72x = 739,137.63 × 317,905.09 - Step 4: Simplify right side
535,850.72x = 234,975,614,787.54 - Step 5: Solve for x
x = 234,975,614,787.54/535,850.72 - Step 6: Final answer
x = 438,509.47
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1.5x scale
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.