Finding the Fourth Proportional to 628,446.19, 942,816.94 and 207,722.07
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Solution
The fourth proportional to 628,446.19, 942,816.94 and 207,722.07 is: 311,631.91
Step by Step Solution
- Step 1: Write the proportion equation
628,446.19 : 942,816.94 = 207,722.07 : x - Step 2: Convert to fraction form
628,446.19/942,816.94 = 207,722.07/x - Step 3: Cross multiply
628,446.19x = 942,816.94 × 207,722.07 - Step 4: Simplify right side
628,446.19x = 195,843,885,369.26 - Step 5: Solve for x
x = 195,843,885,369.26/628,446.19 - Step 6: Final answer
x = 311,631.91
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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.