Finding the Fourth Proportional to 328,346.64, 492,520.10 and 79,028.64
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Solution
The fourth proportional to 328,346.64, 492,520.10 and 79,028.64 is: 118,542.99
Step by Step Solution
- Step 1: Write the proportion equation
328,346.64 : 492,520.10 = 79,028.64 : x - Step 2: Convert to fraction form
328,346.64/492,520.10 = 79,028.64/x - Step 3: Cross multiply
328,346.64x = 492,520.10 × 79,028.64 - Step 4: Simplify right side
328,346.64x = 38,923,193,280.52 - Step 5: Solve for x
x = 38,923,193,280.52/328,346.64 - Step 6: Final answer
x = 118,542.99
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1.5x scale
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.