Finding the Fourth Proportional to 769,119.24, 1,154,402.46 and 390,311.88
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Solution
The fourth proportional to 769,119.24, 1,154,402.46 and 390,311.88 is: 585,835.03
Step by Step Solution
- Step 1: Write the proportion equation
769,119.24 : 1,154,402.46 = 390,311.88 : x - Step 2: Convert to fraction form
769,119.24/1,154,402.46 = 390,311.88/x - Step 3: Cross multiply
769,119.24x = 1,154,402.46 × 390,311.88 - Step 4: Simplify right side
769,119.24x = 450,576,994,439.23 - Step 5: Solve for x
x = 450,576,994,439.23/769,119.24 - Step 6: Final answer
x = 585,835.03
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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.