Finding the Fourth Proportional to 1,491,848.80, 2,058,732.12 and 812,785.84
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Solution
The fourth proportional to 1,491,848.80, 2,058,732.12 and 812,785.84 is: 1,121,633.99
Step by Step Solution
- Step 1: Write the proportion equation
1,491,848.80 : 2,058,732.12 = 812,785.84 : x - Step 2: Convert to fraction form
1,491,848.80/2,058,732.12 = 812,785.84/x - Step 3: Cross multiply
1,491,848.80x = 2,058,732.12 × 812,785.84 - Step 4: Simplify right side
1,491,848.80x = 1,673,308,315,489.18 - Step 5: Solve for x
x = 1,673,308,315,489.18/1,491,848.80 - Step 6: Final answer
x = 1,121,633.99
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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.