Finding the Fourth Proportional to 487,022.99, 672,092.63 and 272,163.05
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Solution
The fourth proportional to 487,022.99, 672,092.63 and 272,163.05 is: 375,585.52
Step by Step Solution
- Step 1: Write the proportion equation
487,022.99 : 672,092.63 = 272,163.05 : x - Step 2: Convert to fraction form
487,022.99/672,092.63 = 272,163.05/x - Step 3: Cross multiply
487,022.99x = 672,092.63 × 272,163.05 - Step 4: Simplify right side
487,022.99x = 182,918,780,063.32 - Step 5: Solve for x
x = 182,918,780,063.32/487,022.99 - Step 6: Final answer
x = 375,585.52
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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.