Finding the Fourth Proportional to 929,713.20, 1,394,416.71 and 869,191.62
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Solution
The fourth proportional to 929,713.20, 1,394,416.71 and 869,191.62 is: 1,303,644.31
Step by Step Solution
- Step 1: Write the proportion equation
929,713.20 : 1,394,416.71 = 869,191.62 : x - Step 2: Convert to fraction form
929,713.20/1,394,416.71 = 869,191.62/x - Step 3: Cross multiply
929,713.20x = 1,394,416.71 × 869,191.62 - Step 4: Simplify right side
929,713.20x = 1,212,015,319,119.97 - Step 5: Solve for x
x = 1,212,015,319,119.97/929,713.20 - Step 6: Final answer
x = 1,303,644.31
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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.