Finding the Fourth Proportional to 1,080.93, 1,622.34 and 619.63
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Solution
The fourth proportional to 1,080.93, 1,622.34 and 619.63 is: 929.99
Step by Step Solution
- Step 1: Write the proportion equation
1,080.93 : 1,622.34 = 619.63 : x - Step 2: Convert to fraction form
1,080.93/1,622.34 = 619.63/x - Step 3: Cross multiply
1,080.93x = 1,622.34 × 619.63 - Step 4: Simplify right side
1,080.93x = 1,005,250.53 - Step 5: Solve for x
x = 1,005,250.53/1,080.93 - Step 6: Final answer
x = 929.99
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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.