Finding the Fourth Proportional to 491,170.80, 736,756.20 and 432,121.80
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Solution
The fourth proportional to 491,170.80, 736,756.20 and 432,121.80 is: 648,182.70
Step by Step Solution
- Step 1: Write the proportion equation
491,170.80 : 736,756.20 = 432,121.80 : x - Step 2: Convert to fraction form
491,170.80/736,756.20 = 432,121.80/x - Step 3: Cross multiply
491,170.80x = 736,756.20 × 432,121.80 - Step 4: Simplify right side
491,170.80x = 318,368,415,305.16 - Step 5: Solve for x
x = 318,368,415,305.16/491,170.80 - Step 6: Final answer
x = 648,182.70
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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.