Finding the Fourth Proportional to 449,425.18, 620,205.74 and 258,438.59
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Solution
The fourth proportional to 449,425.18, 620,205.74 and 258,438.59 is: 356,644.67
Step by Step Solution
- Step 1: Write the proportion equation
449,425.18 : 620,205.74 = 258,438.59 : x - Step 2: Convert to fraction form
449,425.18/620,205.74 = 258,438.59/x - Step 3: Cross multiply
449,425.18x = 620,205.74 × 258,438.59 - Step 4: Simplify right side
449,425.18x = 160,285,092,562.29 - Step 5: Solve for x
x = 160,285,092,562.29/449,425.18 - Step 6: Final answer
x = 356,644.67
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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.