Finding the Fourth Proportional to 437,612.20, 655,106.10 and 260,027.80
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Solution
The fourth proportional to 437,612.20, 655,106.10 and 260,027.80 is: 389,261.99
Step by Step Solution
- Step 1: Write the proportion equation
437,612.20 : 655,106.10 = 260,027.80 : x - Step 2: Convert to fraction form
437,612.20/655,106.10 = 260,027.80/x - Step 3: Cross multiply
437,612.20x = 655,106.10 × 260,027.80 - Step 4: Simplify right side
437,612.20x = 170,345,797,949.58 - Step 5: Solve for x
x = 170,345,797,949.58/437,612.20 - Step 6: Final answer
x = 389,261.99
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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.