Finding the Fourth Proportional to 2,638,963.81, 3,641,463.16 and 1,477,475.65
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Solution
The fourth proportional to 2,638,963.81, 3,641,463.16 and 1,477,475.65 is: 2,038,744.57
Step by Step Solution
- Step 1: Write the proportion equation
2,638,963.81 : 3,641,463.16 = 1,477,475.65 : x - Step 2: Convert to fraction form
2,638,963.81/3,641,463.16 = 1,477,475.65/x - Step 3: Cross multiply
2,638,963.81x = 3,641,463.16 × 1,477,475.65 - Step 4: Simplify right side
2,638,963.81x = 5,380,173,149,272.05 - Step 5: Solve for x
x = 5,380,173,149,272.05/2,638,963.81 - Step 6: Final answer
x = 2,038,744.57
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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.