Finding the Fourth Proportional to 453,905.80, 680,858.70 and 313,937.80
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Solution
The fourth proportional to 453,905.80, 680,858.70 and 313,937.80 is: 470,906.70
Step by Step Solution
- Step 1: Write the proportion equation
453,905.80 : 680,858.70 = 313,937.80 : x - Step 2: Convert to fraction form
453,905.80/680,858.70 = 313,937.80/x - Step 3: Cross multiply
453,905.80x = 680,858.70 × 313,937.80 - Step 4: Simplify right side
453,905.80x = 213,747,282,388.86 - Step 5: Solve for x
x = 213,747,282,388.86/453,905.80 - Step 6: Final answer
x = 470,906.70
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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.