Finding the Fourth Proportional to 1,272,945.35, 1,909,149.11 and 374,142.62
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Solution
The fourth proportional to 1,272,945.35, 1,909,149.11 and 374,142.62 is: 561,134.89
Step by Step Solution
- Step 1: Write the proportion equation
1,272,945.35 : 1,909,149.11 = 374,142.62 : x - Step 2: Convert to fraction form
1,272,945.35/1,909,149.11 = 374,142.62/x - Step 3: Cross multiply
1,272,945.35x = 1,909,149.11 × 374,142.62 - Step 4: Simplify right side
1,272,945.35x = 714,294,054,291.26 - Step 5: Solve for x
x = 714,294,054,291.26/1,272,945.35 - Step 6: Final answer
x = 561,134.89
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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.