Finding the Fourth Proportional to 659,285.84, 988,261.80 and 259,771.28
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Solution
The fourth proportional to 659,285.84, 988,261.80 and 259,771.28 is: 389,394.12
Step by Step Solution
- Step 1: Write the proportion equation
659,285.84 : 988,261.80 = 259,771.28 : x - Step 2: Convert to fraction form
659,285.84/988,261.80 = 259,771.28/x - Step 3: Cross multiply
659,285.84x = 988,261.80 × 259,771.28 - Step 4: Simplify right side
659,285.84x = 256,722,032,761.10 - Step 5: Solve for x
x = 256,722,032,761.10/659,285.84 - Step 6: Final answer
x = 389,394.12
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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.