Finding the Fourth Proportional to 660,665.88, 990,785.58 and 187,224.12
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Solution
The fourth proportional to 660,665.88, 990,785.58 and 187,224.12 is: 280,775.75
Step by Step Solution
- Step 1: Write the proportion equation
660,665.88 : 990,785.58 = 187,224.12 : x - Step 2: Convert to fraction form
660,665.88/990,785.58 = 187,224.12/x - Step 3: Cross multiply
660,665.88x = 990,785.58 × 187,224.12 - Step 4: Simplify right side
660,665.88x = 185,498,958,324.19 - Step 5: Solve for x
x = 185,498,958,324.19/660,665.88 - Step 6: Final answer
x = 280,775.75
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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.