Finding the Fourth Proportional to 512,193.40, 766,907.70 and 512,193.40
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Solution
The fourth proportional to 512,193.40, 766,907.70 and 512,193.40 is: 766,907.70
Step by Step Solution
- Step 1: Write the proportion equation
512,193.40 : 766,907.70 = 512,193.40 : x - Step 2: Convert to fraction form
512,193.40/766,907.70 = 512,193.40/x - Step 3: Cross multiply
512,193.40x = 766,907.70 × 512,193.40 - Step 4: Simplify right side
512,193.40x = 392,805,062,349.18 - Step 5: Solve for x
x = 392,805,062,349.18/512,193.40 - Step 6: Final answer
x = 766,907.70
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1.5x scale
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.