Finding the Fourth Proportional to 1,915,303.09, 2,643,147.57 and 1,044,138.37
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Solution
The fourth proportional to 1,915,303.09, 2,643,147.57 and 1,044,138.37 is: 1,440,926.93
Step by Step Solution
- Step 1: Write the proportion equation
1,915,303.09 : 2,643,147.57 = 1,044,138.37 : x - Step 2: Convert to fraction form
1,915,303.09/2,643,147.57 = 1,044,138.37/x - Step 3: Cross multiply
1,915,303.09x = 2,643,147.57 × 1,044,138.37 - Step 4: Simplify right side
1,915,303.09x = 2,759,811,795,409.26 - Step 5: Solve for x
x = 2,759,811,795,409.26/1,915,303.09 - Step 6: Final answer
x = 1,440,926.93
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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.