Finding the Fourth Proportional to 646,615.11, 892,293.70 and 356,170.08
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Solution
The fourth proportional to 646,615.11, 892,293.70 and 356,170.08 is: 491,495.35
Step by Step Solution
- Step 1: Write the proportion equation
646,615.11 : 892,293.70 = 356,170.08 : x - Step 2: Convert to fraction form
646,615.11/892,293.70 = 356,170.08/x - Step 3: Cross multiply
646,615.11x = 892,293.70 × 356,170.08 - Step 4: Simplify right side
646,615.11x = 317,808,318,512.50 - Step 5: Solve for x
x = 317,808,318,512.50/646,615.11 - Step 6: Final answer
x = 491,495.35
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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.