Finding the Fourth Proportional to 324,619.56, 486,981.66 and 99,979.92
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Solution
The fourth proportional to 324,619.56, 486,981.66 and 99,979.92 is: 149,985.99
Step by Step Solution
- Step 1: Write the proportion equation
324,619.56 : 486,981.66 = 99,979.92 : x - Step 2: Convert to fraction form
324,619.56/486,981.66 = 99,979.92/x - Step 3: Cross multiply
324,619.56x = 486,981.66 × 99,979.92 - Step 4: Simplify right side
324,619.56x = 48,688,387,408.27 - Step 5: Solve for x
x = 48,688,387,408.27/324,619.56 - Step 6: Final answer
x = 149,985.99
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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.