Finding the Fourth Proportional to 527,665.44, 791,491.20 and 128,305.12
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Solution
The fourth proportional to 527,665.44, 791,491.20 and 128,305.12 is: 192,455.99
Step by Step Solution
- Step 1: Write the proportion equation
527,665.44 : 791,491.20 = 128,305.12 : x - Step 2: Convert to fraction form
527,665.44/791,491.20 = 128,305.12/x - Step 3: Cross multiply
527,665.44x = 791,491.20 × 128,305.12 - Step 4: Simplify right side
527,665.44x = 101,552,373,394.94 - Step 5: Solve for x
x = 101,552,373,394.94/527,665.44 - Step 6: Final answer
x = 192,455.99
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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.