Finding the Fourth Proportional to 455,422.05, 683,133.08 and 322,452.45
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Solution
The fourth proportional to 455,422.05, 683,133.08 and 322,452.45 is: 483,678.68
Step by Step Solution
- Step 1: Write the proportion equation
455,422.05 : 683,133.08 = 322,452.45 : x - Step 2: Convert to fraction form
455,422.05/683,133.08 = 322,452.45/x - Step 3: Cross multiply
455,422.05x = 683,133.08 × 322,452.45 - Step 4: Simplify right side
455,422.05x = 220,277,933,709.78 - Step 5: Solve for x
x = 220,277,933,709.78/455,422.05 - Step 6: Final answer
x = 483,678.68
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Similar ratio
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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.