Finding the Fourth Proportional to 823,660.79, 1,236,290.12 and 397,496.53
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Solution
The fourth proportional to 823,660.79, 1,236,290.12 and 397,496.53 is: 596,630.35
Step by Step Solution
- Step 1: Write the proportion equation
823,660.79 : 1,236,290.12 = 397,496.53 : x - Step 2: Convert to fraction form
823,660.79/1,236,290.12 = 397,496.53/x - Step 3: Cross multiply
823,660.79x = 1,236,290.12 × 397,496.53 - Step 4: Simplify right side
823,660.79x = 491,421,024,604.35 - Step 5: Solve for x
x = 491,421,024,604.35/823,660.79 - Step 6: Final answer
x = 596,630.35
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.