Finding the Fourth Proportional to 839,400.84, 1,259,524.68 and 412,918.80
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Solution
The fourth proportional to 839,400.84, 1,259,524.68 and 412,918.80 is: 619,586.49
Step by Step Solution
- Step 1: Write the proportion equation
839,400.84 : 1,259,524.68 = 412,918.80 : x - Step 2: Convert to fraction form
839,400.84/1,259,524.68 = 412,918.80/x - Step 3: Cross multiply
839,400.84x = 1,259,524.68 × 412,918.80 - Step 4: Simplify right side
839,400.84x = 520,081,419,435.98 - Step 5: Solve for x
x = 520,081,419,435.98/839,400.84 - Step 6: Final answer
x = 619,586.49
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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.