Finding the Fourth Proportional to 854,461.80, 1,281,692.70 and 412,093.80
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Solution
The fourth proportional to 854,461.80, 1,281,692.70 and 412,093.80 is: 618,140.70
Step by Step Solution
- Step 1: Write the proportion equation
854,461.80 : 1,281,692.70 = 412,093.80 : x - Step 2: Convert to fraction form
854,461.80/1,281,692.70 = 412,093.80/x - Step 3: Cross multiply
854,461.80x = 1,281,692.70 × 412,093.80 - Step 4: Simplify right side
854,461.80x = 528,177,615,175.26 - Step 5: Solve for x
x = 528,177,615,175.26/854,461.80 - Step 6: Final answer
x = 618,140.70
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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.