Finding the Fourth Proportional to 587,170.80, 880,756.20 and 213,145.20
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Solution
The fourth proportional to 587,170.80, 880,756.20 and 213,145.20 is: 319,717.80
Step by Step Solution
- Step 1: Write the proportion equation
587,170.80 : 880,756.20 = 213,145.20 : x - Step 2: Convert to fraction form
587,170.80/880,756.20 = 213,145.20/x - Step 3: Cross multiply
587,170.80x = 880,756.20 × 213,145.20 - Step 4: Simplify right side
587,170.80x = 187,728,956,400.24 - Step 5: Solve for x
x = 187,728,956,400.24/587,170.80 - Step 6: Final answer
x = 319,717.80
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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.