Finding the Fourth Proportional to 490,894.47, 677,438.41 and 276,032.65
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Solution
The fourth proportional to 490,894.47, 677,438.41 and 276,032.65 is: 380,927.33
Step by Step Solution
- Step 1: Write the proportion equation
490,894.47 : 677,438.41 = 276,032.65 : x - Step 2: Convert to fraction form
490,894.47/677,438.41 = 276,032.65/x - Step 3: Cross multiply
490,894.47x = 677,438.41 × 276,032.65 - Step 4: Simplify right side
490,894.47x = 186,995,120,715.93 - Step 5: Solve for x
x = 186,995,120,715.93/490,894.47 - Step 6: Final answer
x = 380,927.33
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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.