Finding the Fourth Proportional to 642,769.19, 963,323.39 and 305,913.09
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Solution
The fourth proportional to 642,769.19, 963,323.39 and 305,913.09 is: 458,474.43
Step by Step Solution
- Step 1: Write the proportion equation
642,769.19 : 963,323.39 = 305,913.09 : x - Step 2: Convert to fraction form
642,769.19/963,323.39 = 305,913.09/x - Step 3: Cross multiply
642,769.19x = 963,323.39 × 305,913.09 - Step 4: Simplify right side
642,769.19x = 294,693,233,374.61 - Step 5: Solve for x
x = 294,693,233,374.61/642,769.19 - Step 6: Final answer
x = 458,474.43
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1.5x scale
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.