Finding the Fourth Proportional to 490,920.57, 677,466.11 and 276,056.06
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Solution
The fourth proportional to 490,920.57, 677,466.11 and 276,056.06 is: 380,954.95
Step by Step Solution
- Step 1: Write the proportion equation
490,920.57 : 677,466.11 = 276,056.06 : x - Step 2: Convert to fraction form
490,920.57/677,466.11 = 276,056.06/x - Step 3: Cross multiply
490,920.57x = 677,466.11 × 276,056.06 - Step 4: Simplify right side
490,920.57x = 187,018,622,412.94 - Step 5: Solve for x
x = 187,018,622,412.94/490,920.57 - Step 6: Final answer
x = 380,954.95
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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.