Finding the Fourth Proportional to 1,787,399.40, 2,466,593.79 and 1,330,556.94
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Solution
The fourth proportional to 1,787,399.40, 2,466,593.79 and 1,330,556.94 is: 1,836,155.64
Step by Step Solution
- Step 1: Write the proportion equation
1,787,399.40 : 2,466,593.79 = 1,330,556.94 : x - Step 2: Convert to fraction form
1,787,399.40/2,466,593.79 = 1,330,556.94/x - Step 3: Cross multiply
1,787,399.40x = 2,466,593.79 × 1,330,556.94 - Step 4: Simplify right side
1,787,399.40x = 3,281,943,485,445.40 - Step 5: Solve for x
x = 3,281,943,485,445.40/1,787,399.40 - Step 6: Final answer
x = 1,836,155.64
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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.