Finding the Fourth Proportional to 869,422.56, 1,304,138.34 and 395,776.68
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Solution
The fourth proportional to 869,422.56, 1,304,138.34 and 395,776.68 is: 593,667.07
Step by Step Solution
- Step 1: Write the proportion equation
869,422.56 : 1,304,138.34 = 395,776.68 : x - Step 2: Convert to fraction form
869,422.56/1,304,138.34 = 395,776.68/x - Step 3: Cross multiply
869,422.56x = 1,304,138.34 × 395,776.68 - Step 4: Simplify right side
869,422.56x = 516,147,542,465.91 - Step 5: Solve for x
x = 516,147,542,465.91/869,422.56 - Step 6: Final answer
x = 593,667.07
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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.