Finding the Fourth Proportional to 1,457,568.14, 2,011,438.81 and 812,987.84
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Solution
The fourth proportional to 1,457,568.14, 2,011,438.81 and 812,987.84 is: 1,121,920.31
Step by Step Solution
- Step 1: Write the proportion equation
1,457,568.14 : 2,011,438.81 = 812,987.84 : x - Step 2: Convert to fraction form
1,457,568.14/2,011,438.81 = 812,987.84/x - Step 3: Cross multiply
1,457,568.14x = 2,011,438.81 × 812,987.84 - Step 4: Simplify right side
1,457,568.14x = 1,635,275,293,434.07 - Step 5: Solve for x
x = 1,635,275,293,434.07/1,457,568.14 - Step 6: Final answer
x = 1,121,920.31
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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.