Finding the Fourth Proportional to 763,453.83, 1,145,306.49 and 258,045.42
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Solution
The fourth proportional to 763,453.83, 1,145,306.49 and 258,045.42 is: 387,110.63
Step by Step Solution
- Step 1: Write the proportion equation
763,453.83 : 1,145,306.49 = 258,045.42 : x - Step 2: Convert to fraction form
763,453.83/1,145,306.49 = 258,045.42/x - Step 3: Cross multiply
763,453.83x = 1,145,306.49 × 258,045.42 - Step 4: Simplify right side
763,453.83x = 295,541,094,240.78 - Step 5: Solve for x
x = 295,541,094,240.78/763,453.83 - Step 6: Final answer
x = 387,110.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.