Finding the Fourth Proportional to 609,521.28, 910,575.36 and 394,537.92
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Solution
The fourth proportional to 609,521.28, 910,575.36 and 394,537.92 is: 589,407.66
Step by Step Solution
- Step 1: Write the proportion equation
609,521.28 : 910,575.36 = 394,537.92 : x - Step 2: Convert to fraction form
609,521.28/910,575.36 = 394,537.92/x - Step 3: Cross multiply
609,521.28x = 910,575.36 × 394,537.92 - Step 4: Simplify right side
609,521.28x = 359,256,508,537.65 - Step 5: Solve for x
x = 359,256,508,537.65/609,521.28 - Step 6: Final answer
x = 589,407.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.