Finding the Fourth Proportional to 1,457,395.12, 2,011,208.84 and 812,857.06
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Solution
The fourth proportional to 1,457,395.12, 2,011,208.84 and 812,857.06 is: 1,121,744.74
Step by Step Solution
- Step 1: Write the proportion equation
1,457,395.12 : 2,011,208.84 = 812,857.06 : x - Step 2: Convert to fraction form
1,457,395.12/2,011,208.84 = 812,857.06/x - Step 3: Cross multiply
1,457,395.12x = 2,011,208.84 × 812,857.06 - Step 4: Simplify right side
1,457,395.12x = 1,634,825,304,728.41 - Step 5: Solve for x
x = 1,634,825,304,728.41/1,457,395.12 - Step 6: Final answer
x = 1,121,744.74
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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.