Finding the Fourth Proportional to 1,488,742.40, 2,054,405.20 and 809,679.44
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Solution
The fourth proportional to 1,488,742.40, 2,054,405.20 and 809,679.44 is: 1,117,325.37
Step by Step Solution
- Step 1: Write the proportion equation
1,488,742.40 : 2,054,405.20 = 809,679.44 : x - Step 2: Convert to fraction form
1,488,742.40/2,054,405.20 = 809,679.44/x - Step 3: Cross multiply
1,488,742.40x = 2,054,405.20 × 809,679.44 - Step 4: Simplify right side
1,488,742.40x = 1,663,409,651,869.09 - Step 5: Solve for x
x = 1,663,409,651,869.09/1,488,742.40 - Step 6: Final answer
x = 1,117,325.37
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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.