Finding the Fourth Proportional to 642,908.81, 964,295.55 and 263,869.62
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Solution
The fourth proportional to 642,908.81, 964,295.55 and 263,869.62 is: 395,776.66
Step by Step Solution
- Step 1: Write the proportion equation
642,908.81 : 964,295.55 = 263,869.62 : x - Step 2: Convert to fraction form
642,908.81/964,295.55 = 263,869.62/x - Step 3: Cross multiply
642,908.81x = 964,295.55 × 263,869.62 - Step 4: Simplify right side
642,908.81x = 254,448,300,346.19 - Step 5: Solve for x
x = 254,448,300,346.19/642,908.81 - Step 6: Final answer
x = 395,776.66
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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.