Finding the Fourth Proportional to 460,135.20, 690,202.80 and 433,891.20
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Solution
The fourth proportional to 460,135.20, 690,202.80 and 433,891.20 is: 650,836.80
Step by Step Solution
- Step 1: Write the proportion equation
460,135.20 : 690,202.80 = 433,891.20 : x - Step 2: Convert to fraction form
460,135.20/690,202.80 = 433,891.20/x - Step 3: Cross multiply
460,135.20x = 690,202.80 × 433,891.20 - Step 4: Simplify right side
460,135.20x = 299,472,921,135.36 - Step 5: Solve for x
x = 299,472,921,135.36/460,135.20 - Step 6: Final answer
x = 650,836.80
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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.