Finding the Fourth Proportional to 418,408.84, 577,379.76 and 227,420.56
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Solution
The fourth proportional to 418,408.84, 577,379.76 and 227,420.56 is: 313,827.09
Step by Step Solution
- Step 1: Write the proportion equation
418,408.84 : 577,379.76 = 227,420.56 : x - Step 2: Convert to fraction form
418,408.84/577,379.76 = 227,420.56/x - Step 3: Cross multiply
418,408.84x = 577,379.76 × 227,420.56 - Step 4: Simplify right side
418,408.84x = 131,308,028,351.87 - Step 5: Solve for x
x = 131,308,028,351.87/418,408.84 - Step 6: Final answer
x = 313,827.09
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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.