Finding the Fourth Proportional to 420,986.21, 581,575.68 and 364,299.17
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Solution
The fourth proportional to 420,986.21, 581,575.68 and 364,299.17 is: 503,264.79
Step by Step Solution
- Step 1: Write the proportion equation
420,986.21 : 581,575.68 = 364,299.17 : x - Step 2: Convert to fraction form
420,986.21/581,575.68 = 364,299.17/x - Step 3: Cross multiply
420,986.21x = 581,575.68 × 364,299.17 - Step 4: Simplify right side
420,986.21x = 211,867,534,608.31 - Step 5: Solve for x
x = 211,867,534,608.31/420,986.21 - Step 6: Final answer
x = 503,264.79
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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.