Finding the Fourth Proportional to 448,826.68, 673,234.26 and 128,986.12
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Solution
The fourth proportional to 448,826.68, 673,234.26 and 128,986.12 is: 193,477.52
Step by Step Solution
- Step 1: Write the proportion equation
448,826.68 : 673,234.26 = 128,986.12 : x - Step 2: Convert to fraction form
448,826.68/673,234.26 = 128,986.12/x - Step 3: Cross multiply
448,826.68x = 673,234.26 × 128,986.12 - Step 4: Simplify right side
448,826.68x = 86,837,875,048.47 - Step 5: Solve for x
x = 86,837,875,048.47/448,826.68 - Step 6: Final answer
x = 193,477.52
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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.