Finding the Fourth Proportional to 509,421.40, 762,317.70 and 443,584.60
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Solution
The fourth proportional to 509,421.40, 762,317.70 and 443,584.60 is: 663,796.99
Step by Step Solution
- Step 1: Write the proportion equation
509,421.40 : 762,317.70 = 443,584.60 : x - Step 2: Convert to fraction form
509,421.40/762,317.70 = 443,584.60/x - Step 3: Cross multiply
509,421.40x = 762,317.70 × 443,584.60 - Step 4: Simplify right side
509,421.40x = 338,152,392,027.42 - Step 5: Solve for x
x = 338,152,392,027.42/509,421.40 - Step 6: Final answer
x = 663,796.99
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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.