Finding the Fourth Proportional to 621,580.98, 857,857.62 and 349,660.32
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Solution
The fourth proportional to 621,580.98, 857,857.62 and 349,660.32 is: 482,573.92
Step by Step Solution
- Step 1: Write the proportion equation
621,580.98 : 857,857.62 = 349,660.32 : x - Step 2: Convert to fraction form
621,580.98/857,857.62 = 349,660.32/x - Step 3: Cross multiply
621,580.98x = 857,857.62 × 349,660.32 - Step 4: Simplify right side
621,580.98x = 299,958,769,923.64 - Step 5: Solve for x
x = 299,958,769,923.64/621,580.98 - Step 6: Final answer
x = 482,573.92
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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.