Finding the Fourth Proportional to 490,972.16, 677,566.08 and 276,179.84
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Solution
The fourth proportional to 490,972.16, 677,566.08 and 276,179.84 is: 381,141.96
Step by Step Solution
- Step 1: Write the proportion equation
490,972.16 : 677,566.08 = 276,179.84 : x - Step 2: Convert to fraction form
490,972.16/677,566.08 = 276,179.84/x - Step 3: Cross multiply
490,972.16x = 677,566.08 × 276,179.84 - Step 4: Simplify right side
490,972.16x = 187,130,091,563.83 - Step 5: Solve for x
x = 187,130,091,563.83/490,972.16 - Step 6: Final answer
x = 381,141.96
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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.