Finding the Fourth Proportional to 869,416.56, 1,304,129.34 and 395,770.68
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Solution
The fourth proportional to 869,416.56, 1,304,129.34 and 395,770.68 is: 593,658.07
Step by Step Solution
- Step 1: Write the proportion equation
869,416.56 : 1,304,129.34 = 395,770.68 : x - Step 2: Convert to fraction form
869,416.56/1,304,129.34 = 395,770.68/x - Step 3: Cross multiply
869,416.56x = 1,304,129.34 × 395,770.68 - Step 4: Simplify right side
869,416.56x = 516,136,155,699.75 - Step 5: Solve for x
x = 516,136,155,699.75/869,416.56 - Step 6: Final answer
x = 593,658.07
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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.