Finding the Fourth Proportional to 1,245,562.68, 1,861,519.11 and 909,311.44
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Solution
The fourth proportional to 1,245,562.68, 1,861,519.11 and 909,311.44 is: 1,358,984.70
Step by Step Solution
- Step 1: Write the proportion equation
1,245,562.68 : 1,861,519.11 = 909,311.44 : x - Step 2: Convert to fraction form
1,245,562.68/1,861,519.11 = 909,311.44/x - Step 3: Cross multiply
1,245,562.68x = 1,861,519.11 × 909,311.44 - Step 4: Simplify right side
1,245,562.68x = 1,692,700,622,501.62 - Step 5: Solve for x
x = 1,692,700,622,501.62/1,245,562.68 - Step 6: Final answer
x = 1,358,984.70
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.