Finding the Fourth Proportional to 415,816.20, 622,802.70 and 322,017.80
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Solution
The fourth proportional to 415,816.20, 622,802.70 and 322,017.80 is: 482,312.99
Step by Step Solution
- Step 1: Write the proportion equation
415,816.20 : 622,802.70 = 322,017.80 : x - Step 2: Convert to fraction form
415,816.20/622,802.70 = 322,017.80/x - Step 3: Cross multiply
415,816.20x = 622,802.70 × 322,017.80 - Step 4: Simplify right side
415,816.20x = 200,553,555,288.06 - Step 5: Solve for x
x = 200,553,555,288.06/415,816.20 - Step 6: Final answer
x = 482,312.99
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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.