Finding the Fourth Proportional to 1,649.89, 2,474.91 and 417.31
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Solution
The fourth proportional to 1,649.89, 2,474.91 and 417.31 is: 625.99
Step by Step Solution
- Step 1: Write the proportion equation
1,649.89 : 2,474.91 = 417.31 : x - Step 2: Convert to fraction form
1,649.89/2,474.91 = 417.31/x - Step 3: Cross multiply
1,649.89x = 2,474.91 × 417.31 - Step 4: Simplify right side
1,649.89x = 1,032,811.92 - Step 5: Solve for x
x = 1,032,811.92/1,649.89 - Step 6: Final answer
x = 625.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.