Finding the Fourth Proportional to 465,883.64, 698,840.99 and 128,896.07
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Solution
The fourth proportional to 465,883.64, 698,840.99 and 128,896.07 is: 193,348.39
Step by Step Solution
- Step 1: Write the proportion equation
465,883.64 : 698,840.99 = 128,896.07 : x - Step 2: Convert to fraction form
465,883.64/698,840.99 = 128,896.07/x - Step 3: Cross multiply
465,883.64x = 698,840.99 × 128,896.07 - Step 4: Simplify right side
465,883.64x = 90,077,853,027.22 - Step 5: Solve for x
x = 90,077,853,027.22/465,883.64 - Step 6: Final answer
x = 193,348.39
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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.