Finding the Fourth Proportional to 455,706.91, 628,873.52 and 251,757.87
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Solution
The fourth proportional to 455,706.91, 628,873.52 and 251,757.87 is: 347,424.75
Step by Step Solution
- Step 1: Write the proportion equation
455,706.91 : 628,873.52 = 251,757.87 : x - Step 2: Convert to fraction form
455,706.91/628,873.52 = 251,757.87/x - Step 3: Cross multiply
455,706.91x = 628,873.52 × 251,757.87 - Step 4: Simplify right side
455,706.91x = 158,323,859,231.09 - Step 5: Solve for x
x = 158,323,859,231.09/455,706.91 - Step 6: Final answer
x = 347,424.75
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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.