Finding the Fourth Proportional to 1,129,861.44, 1,559,633.40 and 748,405.44
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Solution
The fourth proportional to 1,129,861.44, 1,559,633.40 and 748,405.44 is: 1,033,080.77
Step by Step Solution
- Step 1: Write the proportion equation
1,129,861.44 : 1,559,633.40 = 748,405.44 : x - Step 2: Convert to fraction form
1,129,861.44/1,559,633.40 = 748,405.44/x - Step 3: Cross multiply
1,129,861.44x = 1,559,633.40 × 748,405.44 - Step 4: Simplify right side
1,129,861.44x = 1,167,238,120,965.70 - Step 5: Solve for x
x = 1,167,238,120,965.70/1,129,861.44 - Step 6: Final answer
x = 1,033,080.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.