Finding the Fourth Proportional to 459,418.99, 689,161.29 and 122,457.88
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Solution
The fourth proportional to 459,418.99, 689,161.29 and 122,457.88 is: 183,695.56
Step by Step Solution
- Step 1: Write the proportion equation
459,418.99 : 689,161.29 = 122,457.88 : x - Step 2: Convert to fraction form
459,418.99/689,161.29 = 122,457.88/x - Step 3: Cross multiply
459,418.99x = 689,161.29 × 122,457.88 - Step 4: Simplify right side
459,418.99x = 84,393,227,421.58 - Step 5: Solve for x
x = 84,393,227,421.58/459,418.99 - Step 6: Final answer
x = 183,695.56
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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.