Finding the Fourth Proportional to 1,479.98, 2,220 and 506.07
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Solution
The fourth proportional to 1,479.98, 2,220 and 506.07 is: 759.12
Step by Step Solution
- Step 1: Write the proportion equation
1,479.98 : 2,220 = 506.07 : x - Step 2: Convert to fraction form
1,479.98/2,220 = 506.07/x - Step 3: Cross multiply
1,479.98x = 2,220 × 506.07 - Step 4: Simplify right side
1,479.98x = 1,123,475.40 - Step 5: Solve for x
x = 1,123,475.40/1,479.98 - Step 6: Final answer
x = 759.12
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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.