Finding the Fourth Proportional to 741,403.11, 1,023,136.74 and 401,871.36
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Solution
The fourth proportional to 741,403.11, 1,023,136.74 and 401,871.36 is: 554,582.72
Step by Step Solution
- Step 1: Write the proportion equation
741,403.11 : 1,023,136.74 = 401,871.36 : x - Step 2: Convert to fraction form
741,403.11/1,023,136.74 = 401,871.36/x - Step 3: Cross multiply
741,403.11x = 1,023,136.74 × 401,871.36 - Step 4: Simplify right side
741,403.11x = 411,169,353,169.77 - Step 5: Solve for x
x = 411,169,353,169.77/741,403.11 - Step 6: Final answer
x = 554,582.72
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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.