Finding the Fourth Proportional to 743,432.64, 1,115,283.36 and 270,781.44
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Solution
The fourth proportional to 743,432.64, 1,115,283.36 and 270,781.44 is: 406,221.11
Step by Step Solution
- Step 1: Write the proportion equation
743,432.64 : 1,115,283.36 = 270,781.44 : x - Step 2: Convert to fraction form
743,432.64/1,115,283.36 = 270,781.44/x - Step 3: Cross multiply
743,432.64x = 1,115,283.36 × 270,781.44 - Step 4: Simplify right side
743,432.64x = 301,998,034,228.84 - Step 5: Solve for x
x = 301,998,034,228.84/743,432.64 - Step 6: Final answer
x = 406,221.11
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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.