Finding the Fourth Proportional to 669,432.84, 1,004,319.36 and 189,660.12
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Solution
The fourth proportional to 669,432.84, 1,004,319.36 and 189,660.12 is: 284,538.37
Step by Step Solution
- Step 1: Write the proportion equation
669,432.84 : 1,004,319.36 = 189,660.12 : x - Step 2: Convert to fraction form
669,432.84/1,004,319.36 = 189,660.12/x - Step 3: Cross multiply
669,432.84x = 1,004,319.36 × 189,660.12 - Step 4: Simplify right side
669,432.84x = 190,479,330,335.92 - Step 5: Solve for x
x = 190,479,330,335.92/669,432.84 - Step 6: Final answer
x = 284,538.37
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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.