Finding the Fourth Proportional to 448,778.37, 621,934.21 and 440,262.44
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Solution
The fourth proportional to 448,778.37, 621,934.21 and 440,262.44 is: 610,132.50
Step by Step Solution
- Step 1: Write the proportion equation
448,778.37 : 621,934.21 = 440,262.44 : x - Step 2: Convert to fraction form
448,778.37/621,934.21 = 440,262.44/x - Step 3: Cross multiply
448,778.37x = 621,934.21 × 440,262.44 - Step 4: Simplify right side
448,778.37x = 273,814,272,586.98 - Step 5: Solve for x
x = 273,814,272,586.98/448,778.37 - Step 6: Final answer
x = 610,132.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.