Finding the Fourth Proportional to 1,912,695.75, 2,639,520.14 and 1,053,253.96
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Solution
The fourth proportional to 1,912,695.75, 2,639,520.14 and 1,053,253.96 is: 1,453,490.46
Step by Step Solution
- Step 1: Write the proportion equation
1,912,695.75 : 2,639,520.14 = 1,053,253.96 : x - Step 2: Convert to fraction form
1,912,695.75/2,639,520.14 = 1,053,253.96/x - Step 3: Cross multiply
1,912,695.75x = 2,639,520.14 × 1,053,253.96 - Step 4: Simplify right side
1,912,695.75x = 2,780,085,028,089.68 - Step 5: Solve for x
x = 2,780,085,028,089.68/1,912,695.75 - Step 6: Final answer
x = 1,453,490.46
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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.