Finding the Fourth Proportional to 409,768.57, 614,652.81 and 220,318.08
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Solution
The fourth proportional to 409,768.57, 614,652.81 and 220,318.08 is: 330,477.09
Step by Step Solution
- Step 1: Write the proportion equation
409,768.57 : 614,652.81 = 220,318.08 : x - Step 2: Convert to fraction form
409,768.57/614,652.81 = 220,318.08/x - Step 3: Cross multiply
409,768.57x = 614,652.81 × 220,318.08 - Step 4: Simplify right side
409,768.57x = 135,419,123,834.66 - Step 5: Solve for x
x = 135,419,123,834.66/409,768.57 - Step 6: Final answer
x = 330,477.09
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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.