Finding the Fourth Proportional to 1,349,665.41, 1,861,331.13 and 1,119,858.18
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Solution
The fourth proportional to 1,349,665.41, 1,861,331.13 and 1,119,858.18 is: 1,544,402.69
Step by Step Solution
- Step 1: Write the proportion equation
1,349,665.41 : 1,861,331.13 = 1,119,858.18 : x - Step 2: Convert to fraction form
1,349,665.41/1,861,331.13 = 1,119,858.18/x - Step 3: Cross multiply
1,349,665.41x = 1,861,331.13 × 1,119,858.18 - Step 4: Simplify right side
1,349,665.41x = 2,084,426,891,619.14 - Step 5: Solve for x
x = 2,084,426,891,619.14/1,349,665.41 - Step 6: Final answer
x = 1,544,402.69
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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.