Finding the Fourth Proportional to 628,449.36, 942,821.64 and 207,725.19
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Solution
The fourth proportional to 628,449.36, 942,821.64 and 207,725.19 is: 311,636.57
Step by Step Solution
- Step 1: Write the proportion equation
628,449.36 : 942,821.64 = 207,725.19 : x - Step 2: Convert to fraction form
628,449.36/942,821.64 = 207,725.19/x - Step 3: Cross multiply
628,449.36x = 942,821.64 × 207,725.19 - Step 4: Simplify right side
628,449.36x = 195,847,804,305.11 - Step 5: Solve for x
x = 195,847,804,305.11/628,449.36 - Step 6: Final answer
x = 311,636.57
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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.