Finding the Fourth Proportional to 802,135.80, 1,203,203.70 and 358,903.80
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Solution
The fourth proportional to 802,135.80, 1,203,203.70 and 358,903.80 is: 538,355.70
Step by Step Solution
- Step 1: Write the proportion equation
802,135.80 : 1,203,203.70 = 358,903.80 : x - Step 2: Convert to fraction form
802,135.80/1,203,203.70 = 358,903.80/x - Step 3: Cross multiply
802,135.80x = 1,203,203.70 × 358,903.80 - Step 4: Simplify right side
802,135.80x = 431,834,380,104.06 - Step 5: Solve for x
x = 431,834,380,104.06/802,135.80 - Step 6: Final answer
x = 538,355.70
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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.