Finding the Fourth Proportional to 409,584.63, 614,376.86 and 129,101.79
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Solution
The fourth proportional to 409,584.63, 614,376.86 and 129,101.79 is: 193,652.66
Step by Step Solution
- Step 1: Write the proportion equation
409,584.63 : 614,376.86 = 129,101.79 : x - Step 2: Convert to fraction form
409,584.63/614,376.86 = 129,101.79/x - Step 3: Cross multiply
409,584.63x = 614,376.86 × 129,101.79 - Step 4: Simplify right side
409,584.63x = 79,317,151,715.07 - Step 5: Solve for x
x = 79,317,151,715.07/409,584.63 - Step 6: Final answer
x = 193,652.66
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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.