Finding the Fourth Proportional to 644,218.56, 888,956.64 and 376,102.08
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Solution
The fourth proportional to 644,218.56, 888,956.64 and 376,102.08 is: 518,982.94
Step by Step Solution
- Step 1: Write the proportion equation
644,218.56 : 888,956.64 = 376,102.08 : x - Step 2: Convert to fraction form
644,218.56/888,956.64 = 376,102.08/x - Step 3: Cross multiply
644,218.56x = 888,956.64 × 376,102.08 - Step 4: Simplify right side
644,218.56x = 334,338,441,333.81 - Step 5: Solve for x
x = 334,338,441,333.81/644,218.56 - Step 6: Final answer
x = 518,982.94
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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.