Finding the Fourth Proportional to 804,914.90, 1,207,372.35 and 521,479.70
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Solution
The fourth proportional to 804,914.90, 1,207,372.35 and 521,479.70 is: 782,219.55
Step by Step Solution
- Step 1: Write the proportion equation
804,914.90 : 1,207,372.35 = 521,479.70 : x - Step 2: Convert to fraction form
804,914.90/1,207,372.35 = 521,479.70/x - Step 3: Cross multiply
804,914.90x = 1,207,372.35 × 521,479.70 - Step 4: Simplify right side
804,914.90x = 629,620,170,866.30 - Step 5: Solve for x
x = 629,620,170,866.30/804,914.90 - Step 6: Final answer
x = 782,219.55
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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.