Finding the Fourth Proportional to 439,705.50, 659,390.12 and 239,919.09
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Solution
The fourth proportional to 439,705.50, 659,390.12 and 239,919.09 is: 359,786.89
Step by Step Solution
- Step 1: Write the proportion equation
439,705.50 : 659,390.12 = 239,919.09 : x - Step 2: Convert to fraction form
439,705.50/659,390.12 = 239,919.09/x - Step 3: Cross multiply
439,705.50x = 659,390.12 × 239,919.09 - Step 4: Simplify right side
439,705.50x = 158,200,276,345.80 - Step 5: Solve for x
x = 158,200,276,345.80/439,705.50 - Step 6: Final answer
x = 359,786.89
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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.