Finding the Fourth Proportional to 324,646.91, 486,970.36 and 87,989.59
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Solution
The fourth proportional to 324,646.91, 486,970.36 and 87,989.59 is: 131,984.38
Step by Step Solution
- Step 1: Write the proportion equation
324,646.91 : 486,970.36 = 87,989.59 : x - Step 2: Convert to fraction form
324,646.91/486,970.36 = 87,989.59/x - Step 3: Cross multiply
324,646.91x = 486,970.36 × 87,989.59 - Step 4: Simplify right side
324,646.91x = 42,848,321,321.10 - Step 5: Solve for x
x = 42,848,321,321.10/324,646.91 - Step 6: Final answer
x = 131,984.38
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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.