Finding the Fourth Proportional to 460,814.02, 691,220.49 and 128,390.02
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Solution
The fourth proportional to 460,814.02, 691,220.49 and 128,390.02 is: 192,584.88
Step by Step Solution
- Step 1: Write the proportion equation
460,814.02 : 691,220.49 = 128,390.02 : x - Step 2: Convert to fraction form
460,814.02/691,220.49 = 128,390.02/x - Step 3: Cross multiply
460,814.02x = 691,220.49 × 128,390.02 - Step 4: Simplify right side
460,814.02x = 88,745,812,535.51 - Step 5: Solve for x
x = 88,745,812,535.51/460,814.02 - Step 6: Final answer
x = 192,584.88
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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.