Finding the Fourth Proportional to 450,991.90, 622,378.87 and 257,395.75
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Solution
The fourth proportional to 450,991.90, 622,378.87 and 257,395.75 is: 355,211.87
Step by Step Solution
- Step 1: Write the proportion equation
450,991.90 : 622,378.87 = 257,395.75 : x - Step 2: Convert to fraction form
450,991.90/622,378.87 = 257,395.75/x - Step 3: Cross multiply
450,991.90x = 622,378.87 × 257,395.75 - Step 4: Simplify right side
450,991.90x = 160,197,676,027.80 - Step 5: Solve for x
x = 160,197,676,027.80/450,991.90 - Step 6: Final answer
x = 355,211.87
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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.