Finding the Fourth Proportional to 2,591,485.63, 3,576,255.93 and 1,445,640.19
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Solution
The fourth proportional to 2,591,485.63, 3,576,255.93 and 1,445,640.19 is: 1,994,986.68
Step by Step Solution
- Step 1: Write the proportion equation
2,591,485.63 : 3,576,255.93 = 1,445,640.19 : x - Step 2: Convert to fraction form
2,591,485.63/3,576,255.93 = 1,445,640.19/x - Step 3: Cross multiply
2,591,485.63x = 3,576,255.93 × 1,445,640.19 - Step 4: Simplify right side
2,591,485.63x = 5,169,979,302,133.83 - Step 5: Solve for x
x = 5,169,979,302,133.83/2,591,485.63 - Step 6: Final answer
x = 1,994,986.68
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1.5x scale
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.