Finding the Fourth Proportional to 490,179.70, 734,722.80 and 190,560.70
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Solution
The fourth proportional to 490,179.70, 734,722.80 and 190,560.70 is: 285,628.50
Step by Step Solution
- Step 1: Write the proportion equation
490,179.70 : 734,722.80 = 190,560.70 : x - Step 2: Convert to fraction form
490,179.70/734,722.80 = 190,560.70/x - Step 3: Cross multiply
490,179.70x = 734,722.80 × 190,560.70 - Step 4: Simplify right side
490,179.70x = 140,009,291,073.96 - Step 5: Solve for x
x = 140,009,291,073.96/490,179.70 - Step 6: Final answer
x = 285,628.50
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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.