Finding the Fourth Proportional to 485,911.64, 729,077.97 and 261,009.68
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Solution
The fourth proportional to 485,911.64, 729,077.97 and 261,009.68 is: 391,627.60
Step by Step Solution
- Step 1: Write the proportion equation
485,911.64 : 729,077.97 = 261,009.68 : x - Step 2: Convert to fraction form
485,911.64/729,077.97 = 261,009.68/x - Step 3: Cross multiply
485,911.64x = 729,077.97 × 261,009.68 - Step 4: Simplify right side
485,911.64x = 190,296,407,644.75 - Step 5: Solve for x
x = 190,296,407,644.75/485,911.64 - Step 6: Final answer
x = 391,627.60
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.