Finding the Fourth Proportional to 1,640,739.70, 2,264,221.23 and 905,694.42
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Solution
The fourth proportional to 1,640,739.70, 2,264,221.23 and 905,694.42 is: 1,249,858.54
Step by Step Solution
- Step 1: Write the proportion equation
1,640,739.70 : 2,264,221.23 = 905,694.42 : x - Step 2: Convert to fraction form
1,640,739.70/2,264,221.23 = 905,694.42/x - Step 3: Cross multiply
1,640,739.70x = 2,264,221.23 × 905,694.42 - Step 4: Simplify right side
1,640,739.70x = 2,050,692,533,656.54 - Step 5: Solve for x
x = 2,050,692,533,656.54/1,640,739.70 - Step 6: Final answer
x = 1,249,858.54
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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.