Finding the Fourth Proportional to 1,284.76, 1,928.00 and 554.41
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Solution
The fourth proportional to 1,284.76, 1,928.00 and 554.41 is: 831.99
Step by Step Solution
- Step 1: Write the proportion equation
1,284.76 : 1,928.00 = 554.41 : x - Step 2: Convert to fraction form
1,284.76/1,928.00 = 554.41/x - Step 3: Cross multiply
1,284.76x = 1,928.00 × 554.41 - Step 4: Simplify right side
1,284.76x = 1,068,899.05 - Step 5: Solve for x
x = 1,068,899.05/1,284.76 - Step 6: Final answer
x = 831.99
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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.