Finding the Fourth Proportional to 644,816.14, 888,908.43 and 450,620.93
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Solution
The fourth proportional to 644,816.14, 888,908.43 and 450,620.93 is: 621,201.48
Step by Step Solution
- Step 1: Write the proportion equation
644,816.14 : 888,908.43 = 450,620.93 : x - Step 2: Convert to fraction form
644,816.14/888,908.43 = 450,620.93/x - Step 3: Cross multiply
644,816.14x = 888,908.43 × 450,620.93 - Step 4: Simplify right side
644,816.14x = 400,560,743,411.44 - Step 5: Solve for x
x = 400,560,743,411.44/644,816.14 - Step 6: Final answer
x = 621,201.48
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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.