Finding the Fourth Proportional to 328,555.44, 492,833.64 and 79,237.44
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Solution
The fourth proportional to 328,555.44, 492,833.64 and 79,237.44 is: 118,856.28
Step by Step Solution
- Step 1: Write the proportion equation
328,555.44 : 492,833.64 = 79,237.44 : x - Step 2: Convert to fraction form
328,555.44/492,833.64 = 79,237.44/x - Step 3: Cross multiply
328,555.44x = 492,833.64 × 79,237.44 - Step 4: Simplify right side
328,555.44x = 39,050,875,979.48 - Step 5: Solve for x
x = 39,050,875,979.48/328,555.44 - Step 6: Final answer
x = 118,856.28
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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.