Finding the Fourth Proportional to 418,647.53, 577,748.84 and 239,834.09
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Solution
The fourth proportional to 418,647.53, 577,748.84 and 239,834.09 is: 330,979.78
Step by Step Solution
- Step 1: Write the proportion equation
418,647.53 : 577,748.84 = 239,834.09 : x - Step 2: Convert to fraction form
418,647.53/577,748.84 = 239,834.09/x - Step 3: Cross multiply
418,647.53x = 577,748.84 × 239,834.09 - Step 4: Simplify right side
418,647.53x = 138,563,867,535.16 - Step 5: Solve for x
x = 138,563,867,535.16/418,647.53 - Step 6: Final answer
x = 330,979.78
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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.