Finding the Fourth Proportional to 663,045.21, 994,560.53 and 396,880.02
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Solution
The fourth proportional to 663,045.21, 994,560.53 and 396,880.02 is: 595,315.67
Step by Step Solution
- Step 1: Write the proportion equation
663,045.21 : 994,560.53 = 396,880.02 : x - Step 2: Convert to fraction form
663,045.21/994,560.53 = 396,880.02/x - Step 3: Cross multiply
663,045.21x = 994,560.53 × 396,880.02 - Step 4: Simplify right side
663,045.21x = 394,721,201,053.21 - Step 5: Solve for x
x = 394,721,201,053.21/663,045.21 - Step 6: Final answer
x = 595,315.67
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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.