Finding the Fourth Proportional to 1,286,135.22, 1,774,738.73 and 742,446.17
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Solution
The fourth proportional to 1,286,135.22, 1,774,738.73 and 742,446.17 is: 1,024,501.89
Step by Step Solution
- Step 1: Write the proportion equation
1,286,135.22 : 1,774,738.73 = 742,446.17 : x - Step 2: Convert to fraction form
1,286,135.22/1,774,738.73 = 742,446.17/x - Step 3: Cross multiply
1,286,135.22x = 1,774,738.73 × 742,446.17 - Step 4: Simplify right side
1,286,135.22x = 1,317,647,960,253.24 - Step 5: Solve for x
x = 1,317,647,960,253.24/1,286,135.22 - Step 6: Final answer
x = 1,024,501.89
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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.