Finding the Fourth Proportional to 1,525,863.14, 2,107,438.74 and 1,004,902.58
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Solution
The fourth proportional to 1,525,863.14, 2,107,438.74 and 1,004,902.58 is: 1,387,916.50
Step by Step Solution
- Step 1: Write the proportion equation
1,525,863.14 : 2,107,438.74 = 1,004,902.58 : x - Step 2: Convert to fraction form
1,525,863.14/2,107,438.74 = 1,004,902.58/x - Step 3: Cross multiply
1,525,863.14x = 2,107,438.74 × 1,004,902.58 - Step 4: Simplify right side
1,525,863.14x = 2,117,770,616,480.76 - Step 5: Solve for x
x = 2,117,770,616,480.76/1,525,863.14 - Step 6: Final answer
x = 1,387,916.50
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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.