Finding the Fourth Proportional to 401,400.27, 553,396.49 and 318,888.02
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Solution
The fourth proportional to 401,400.27, 553,396.49 and 318,888.02 is: 439,639.75
Step by Step Solution
- Step 1: Write the proportion equation
401,400.27 : 553,396.49 = 318,888.02 : x - Step 2: Convert to fraction form
401,400.27/553,396.49 = 318,888.02/x - Step 3: Cross multiply
401,400.27x = 553,396.49 × 318,888.02 - Step 4: Simplify right side
401,400.27x = 176,471,513,749.68 - Step 5: Solve for x
x = 176,471,513,749.68/401,400.27 - Step 6: Final answer
x = 439,639.75
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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.