Finding the Fourth Proportional to 880.98, 1,321.84 and 419.08
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Solution
The fourth proportional to 880.98, 1,321.84 and 419.08 is: 628.80
Step by Step Solution
- Step 1: Write the proportion equation
880.98 : 1,321.84 = 419.08 : x - Step 2: Convert to fraction form
880.98/1,321.84 = 419.08/x - Step 3: Cross multiply
880.98x = 1,321.84 × 419.08 - Step 4: Simplify right side
880.98x = 553,956.71 - Step 5: Solve for x
x = 553,956.71/880.98 - Step 6: Final answer
x = 628.80
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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.