Finding the Fourth Proportional to 1,820,974.13, 2,512,935.53 and 1,005,170.68
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Solution
The fourth proportional to 1,820,974.13, 2,512,935.53 and 1,005,170.68 is: 1,387,130.69
Step by Step Solution
- Step 1: Write the proportion equation
1,820,974.13 : 2,512,935.53 = 1,005,170.68 : x - Step 2: Convert to fraction form
1,820,974.13/2,512,935.53 = 1,005,170.68/x - Step 3: Cross multiply
1,820,974.13x = 2,512,935.53 × 1,005,170.68 - Step 4: Simplify right side
1,820,974.13x = 2,525,929,102,921.58 - Step 5: Solve for x
x = 2,525,929,102,921.58/1,820,974.13 - Step 6: Final answer
x = 1,387,130.69
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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.