Finding the Fourth Proportional to 862,885.62, 1,190,822.72 and 480,915.14
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Solution
The fourth proportional to 862,885.62, 1,190,822.72 and 480,915.14 is: 663,685.50
Step by Step Solution
- Step 1: Write the proportion equation
862,885.62 : 1,190,822.72 = 480,915.14 : x - Step 2: Convert to fraction form
862,885.62/1,190,822.72 = 480,915.14/x - Step 3: Cross multiply
862,885.62x = 1,190,822.72 × 480,915.14 - Step 4: Simplify right side
862,885.62x = 572,684,675,103.98 - Step 5: Solve for x
x = 572,684,675,103.98/862,885.62 - Step 6: Final answer
x = 663,685.50
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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.