Finding the Fourth Proportional to 716,466.47, 988,723.69 and 394,169.65
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Solution
The fourth proportional to 716,466.47, 988,723.69 and 394,169.65 is: 543,954.09
Step by Step Solution
- Step 1: Write the proportion equation
716,466.47 : 988,723.69 = 394,169.65 : x - Step 2: Convert to fraction form
716,466.47/988,723.69 = 394,169.65/x - Step 3: Cross multiply
716,466.47x = 988,723.69 × 394,169.65 - Step 4: Simplify right side
716,466.47x = 389,724,867,376.78 - Step 5: Solve for x
x = 389,724,867,376.78/716,466.47 - Step 6: Final answer
x = 543,954.09
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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.