Finding the Fourth Proportional to 521,357.94, 782,010.96 and 305,338.08
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Solution
The fourth proportional to 521,357.94, 782,010.96 and 305,338.08 is: 457,991.92
Step by Step Solution
- Step 1: Write the proportion equation
521,357.94 : 782,010.96 = 305,338.08 : x - Step 2: Convert to fraction form
521,357.94/782,010.96 = 305,338.08/x - Step 3: Cross multiply
521,357.94x = 782,010.96 × 305,338.08 - Step 4: Simplify right side
521,357.94x = 238,777,725,065.36 - Step 5: Solve for x
x = 238,777,725,065.36/521,357.94 - Step 6: Final answer
x = 457,991.92
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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.