Finding the Fourth Proportional to 426,519.96, 639,781.74 and 110,954.08
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Solution
The fourth proportional to 426,519.96, 639,781.74 and 110,954.08 is: 166,431.59
Step by Step Solution
- Step 1: Write the proportion equation
426,519.96 : 639,781.74 = 110,954.08 : x - Step 2: Convert to fraction form
426,519.96/639,781.74 = 110,954.08/x - Step 3: Cross multiply
426,519.96x = 639,781.74 × 110,954.08 - Step 4: Simplify right side
426,519.96x = 70,986,394,362.50 - Step 5: Solve for x
x = 70,986,394,362.50/426,519.96 - Step 6: Final answer
x = 166,431.59
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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.