Finding the Fourth Proportional to 660,011.74, 990,489.66 and 281,197.96
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Solution
The fourth proportional to 660,011.74, 990,489.66 and 281,197.96 is: 421,998.06
Step by Step Solution
- Step 1: Write the proportion equation
660,011.74 : 990,489.66 = 281,197.96 : x - Step 2: Convert to fraction form
660,011.74/990,489.66 = 281,197.96/x - Step 3: Cross multiply
660,011.74x = 990,489.66 × 281,197.96 - Step 4: Simplify right side
660,011.74x = 278,523,671,793.09 - Step 5: Solve for x
x = 278,523,671,793.09/660,011.74 - Step 6: Final answer
x = 421,998.06
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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.