Finding the Fourth Proportional to 490,790.95, 736,202.79 and 135,775.24
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Solution
The fourth proportional to 490,790.95, 736,202.79 and 135,775.24 is: 203,667.38
Step by Step Solution
- Step 1: Write the proportion equation
490,790.95 : 736,202.79 = 135,775.24 : x - Step 2: Convert to fraction form
490,790.95/736,202.79 = 135,775.24/x - Step 3: Cross multiply
490,790.95x = 736,202.79 × 135,775.24 - Step 4: Simplify right side
490,790.95x = 99,958,108,660.41 - Step 5: Solve for x
x = 99,958,108,660.41/490,790.95 - Step 6: Final answer
x = 203,667.38
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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.