Finding the Fourth Proportional to 659,107.20, 988,660.80 and 434,575.20
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Solution
The fourth proportional to 659,107.20, 988,660.80 and 434,575.20 is: 651,862.80
Step by Step Solution
- Step 1: Write the proportion equation
659,107.20 : 988,660.80 = 434,575.20 : x - Step 2: Convert to fraction form
659,107.20/988,660.80 = 434,575.20/x - Step 3: Cross multiply
659,107.20x = 988,660.80 × 434,575.20 - Step 4: Simplify right side
659,107.20x = 429,647,464,892.16 - Step 5: Solve for x
x = 429,647,464,892.16/659,107.20 - Step 6: Final answer
x = 651,862.80
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1.5x scale
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.