Finding the Fourth Proportional to 644,660.75, 966,991.12 and 223,937.03
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Solution
The fourth proportional to 644,660.75, 966,991.12 and 223,937.03 is: 335,905.54
Step by Step Solution
- Step 1: Write the proportion equation
644,660.75 : 966,991.12 = 223,937.03 : x - Step 2: Convert to fraction form
644,660.75/966,991.12 = 223,937.03/x - Step 3: Cross multiply
644,660.75x = 966,991.12 × 223,937.03 - Step 4: Simplify right side
644,660.75x = 216,545,119,449.17 - Step 5: Solve for x
x = 216,545,119,449.17/644,660.75 - Step 6: Final answer
x = 335,905.54
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1.5x scale
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.