Finding the Fourth Proportional to 691,098.53, 1,036,643.68 and 178,763.70
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Solution
The fourth proportional to 691,098.53, 1,036,643.68 and 178,763.70 is: 268,144.49
Step by Step Solution
- Step 1: Write the proportion equation
691,098.53 : 1,036,643.68 = 178,763.70 : x - Step 2: Convert to fraction form
691,098.53/1,036,643.68 = 178,763.70/x - Step 3: Cross multiply
691,098.53x = 1,036,643.68 × 178,763.70 - Step 4: Simplify right side
691,098.53x = 185,314,259,371.51 - Step 5: Solve for x
x = 185,314,259,371.51/691,098.53 - Step 6: Final answer
x = 268,144.49
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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.