Finding the Fourth Proportional to 449,538.12, 620,374.79 and 268,355.21
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Solution
The fourth proportional to 449,538.12, 620,374.79 and 268,355.21 is: 370,337.45
Step by Step Solution
- Step 1: Write the proportion equation
449,538.12 : 620,374.79 = 268,355.21 : x - Step 2: Convert to fraction form
449,538.12/620,374.79 = 268,355.21/x - Step 3: Cross multiply
449,538.12x = 620,374.79 × 268,355.21 - Step 4: Simplify right side
449,538.12x = 166,480,802,605.51 - Step 5: Solve for x
x = 166,480,802,605.51/449,538.12 - Step 6: Final answer
x = 370,337.45
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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.