Finding the Fourth Proportional to 461,701.20, 637,039.44 and 280,408.08
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Solution
The fourth proportional to 461,701.20, 637,039.44 and 280,408.08 is: 386,897.43
Step by Step Solution
- Step 1: Write the proportion equation
461,701.20 : 637,039.44 = 280,408.08 : x - Step 2: Convert to fraction form
461,701.20/637,039.44 = 280,408.08/x - Step 3: Cross multiply
461,701.20x = 637,039.44 × 280,408.08 - Step 4: Simplify right side
461,701.20x = 178,631,006,254.68 - Step 5: Solve for x
x = 178,631,006,254.68/461,701.20 - Step 6: Final answer
x = 386,897.43
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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.