Finding the Fourth Proportional to 455,382.47, 628,395.36 and 251,400.44
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Solution
The fourth proportional to 455,382.47, 628,395.36 and 251,400.44 is: 346,914.69
Step by Step Solution
- Step 1: Write the proportion equation
455,382.47 : 628,395.36 = 251,400.44 : x - Step 2: Convert to fraction form
455,382.47/628,395.36 = 251,400.44/x - Step 3: Cross multiply
455,382.47x = 628,395.36 × 251,400.44 - Step 4: Simplify right side
455,382.47x = 157,978,869,997.96 - Step 5: Solve for x
x = 157,978,869,997.96/455,382.47 - Step 6: Final answer
x = 346,914.69
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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.