Finding the Fourth Proportional to 1,725,446.14, 2,380,920.48 and 1,000,143.99
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Solution
The fourth proportional to 1,725,446.14, 2,380,920.48 and 1,000,143.99 is: 1,380,085.57
Step by Step Solution
- Step 1: Write the proportion equation
1,725,446.14 : 2,380,920.48 = 1,000,143.99 : x - Step 2: Convert to fraction form
1,725,446.14/2,380,920.48 = 1,000,143.99/x - Step 3: Cross multiply
1,725,446.14x = 2,380,920.48 × 1,000,143.99 - Step 4: Simplify right side
1,725,446.14x = 2,381,263,308,739.92 - Step 5: Solve for x
x = 2,381,263,308,739.92/1,725,446.14 - Step 6: Final answer
x = 1,380,085.57
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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.