Finding the Fourth Proportional to 1,912,516.07, 2,639,330.24 and 1,053,107.08
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Solution
The fourth proportional to 1,912,516.07, 2,639,330.24 and 1,053,107.08 is: 1,453,319.74
Step by Step Solution
- Step 1: Write the proportion equation
1,912,516.07 : 2,639,330.24 = 1,053,107.08 : x - Step 2: Convert to fraction form
1,912,516.07/2,639,330.24 = 1,053,107.08/x - Step 3: Cross multiply
1,912,516.07x = 2,639,330.24 × 1,053,107.08 - Step 4: Simplify right side
1,912,516.07x = 2,779,497,350,338.24 - Step 5: Solve for x
x = 2,779,497,350,338.24/1,912,516.07 - Step 6: Final answer
x = 1,453,319.74
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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.