Finding the Fourth Proportional to 748,051.10, 1,122,781.35 and 393,319.70
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Solution
The fourth proportional to 748,051.10, 1,122,781.35 and 393,319.70 is: 590,350.08
Step by Step Solution
- Step 1: Write the proportion equation
748,051.10 : 1,122,781.35 = 393,319.70 : x - Step 2: Convert to fraction form
748,051.10/1,122,781.35 = 393,319.70/x - Step 3: Cross multiply
748,051.10x = 1,122,781.35 × 393,319.70 - Step 4: Simplify right side
748,051.10x = 441,612,023,747.60 - Step 5: Solve for x
x = 441,612,023,747.60/748,051.10 - Step 6: Final answer
x = 590,350.08
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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.