Finding the Fourth Proportional to 455,402.75, 628,465.79 and 251,453.12
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Solution
The fourth proportional to 455,402.75, 628,465.79 and 251,453.12 is: 347,010.82
Step by Step Solution
- Step 1: Write the proportion equation
455,402.75 : 628,465.79 = 251,453.12 : x - Step 2: Convert to fraction form
455,402.75/628,465.79 = 251,453.12/x - Step 3: Cross multiply
455,402.75x = 628,465.79 × 251,453.12 - Step 4: Simplify right side
455,402.75x = 158,029,683,708.77 - Step 5: Solve for x
x = 158,029,683,708.77/455,402.75 - Step 6: Final answer
x = 347,010.82
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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.