Finding the Fourth Proportional to 1,211,242.21, 1,817,129.30 and 358,247.21
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Solution
The fourth proportional to 1,211,242.21, 1,817,129.30 and 358,247.21 is: 537,449.48
Step by Step Solution
- Step 1: Write the proportion equation
1,211,242.21 : 1,817,129.30 = 358,247.21 : x - Step 2: Convert to fraction form
1,211,242.21/1,817,129.30 = 358,247.21/x - Step 3: Cross multiply
1,211,242.21x = 1,817,129.30 × 358,247.21 - Step 4: Simplify right side
1,211,242.21x = 650,981,491,057.37 - Step 5: Solve for x
x = 650,981,491,057.37/1,211,242.21 - Step 6: Final answer
x = 537,449.48
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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.