Finding the Fourth Proportional to 512,537.76, 768,804.82 and 138,560.76
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Solution
The fourth proportional to 512,537.76, 768,804.82 and 138,560.76 is: 207,840.65
Step by Step Solution
- Step 1: Write the proportion equation
512,537.76 : 768,804.82 = 138,560.76 : x - Step 2: Convert to fraction form
512,537.76/768,804.82 = 138,560.76/x - Step 3: Cross multiply
512,537.76x = 768,804.82 × 138,560.76 - Step 4: Simplify right side
512,537.76x = 106,526,179,804.46 - Step 5: Solve for x
x = 106,526,179,804.46/512,537.76 - Step 6: Final answer
x = 207,840.65
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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.