Finding the Fourth Proportional to 1,149.34, 1,724 and 418.66
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Solution
The fourth proportional to 1,149.34, 1,724 and 418.66 is: 627.99
Step by Step Solution
- Step 1: Write the proportion equation
1,149.34 : 1,724 = 418.66 : x - Step 2: Convert to fraction form
1,149.34/1,724 = 418.66/x - Step 3: Cross multiply
1,149.34x = 1,724 × 418.66 - Step 4: Simplify right side
1,149.34x = 721,769.84 - Step 5: Solve for x
x = 721,769.84/1,149.34 - Step 6: Final answer
x = 627.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.