Finding the Fourth Proportional to 787,052.22, 1,086,126.99 and 447,520.44
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Solution
The fourth proportional to 787,052.22, 1,086,126.99 and 447,520.44 is: 617,575.32
Step by Step Solution
- Step 1: Write the proportion equation
787,052.22 : 1,086,126.99 = 447,520.44 : x - Step 2: Convert to fraction form
787,052.22/1,086,126.99 = 447,520.44/x - Step 3: Cross multiply
787,052.22x = 1,086,126.99 × 447,520.44 - Step 4: Simplify right side
787,052.22x = 486,064,028,460.68 - Step 5: Solve for x
x = 486,064,028,460.68/787,052.22 - Step 6: Final answer
x = 617,575.32
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.