Finding the Fourth Proportional to 515,753.80, 773,798.81 and 259,454.09
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Solution
The fourth proportional to 515,753.80, 773,798.81 and 259,454.09 is: 389,265.71
Step by Step Solution
- Step 1: Write the proportion equation
515,753.80 : 773,798.81 = 259,454.09 : x - Step 2: Convert to fraction form
515,753.80/773,798.81 = 259,454.09/x - Step 3: Cross multiply
515,753.80x = 773,798.81 × 259,454.09 - Step 4: Simplify right side
515,753.80x = 200,765,266,728.86 - Step 5: Solve for x
x = 200,765,266,728.86/515,753.80 - Step 6: Final answer
x = 389,265.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.