Finding the Fourth Proportional to 455,204.70, 682,807.05 and 313,487.10
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Solution
The fourth proportional to 455,204.70, 682,807.05 and 313,487.10 is: 470,230.65
Step by Step Solution
- Step 1: Write the proportion equation
455,204.70 : 682,807.05 = 313,487.10 : x - Step 2: Convert to fraction form
455,204.70/682,807.05 = 313,487.10/x - Step 3: Cross multiply
455,204.70x = 682,807.05 × 313,487.10 - Step 4: Simplify right side
455,204.70x = 214,051,201,964.06 - Step 5: Solve for x
x = 214,051,201,964.06/455,204.70 - Step 6: Final answer
x = 470,230.65
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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.