Finding the Fourth Proportional to 1,795,945.19, 2,478,462.18 and 1,021,556.12
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Solution
The fourth proportional to 1,795,945.19, 2,478,462.18 and 1,021,556.12 is: 1,409,780.33
Step by Step Solution
- Step 1: Write the proportion equation
1,795,945.19 : 2,478,462.18 = 1,021,556.12 : x - Step 2: Convert to fraction form
1,795,945.19/2,478,462.18 = 1,021,556.12/x - Step 3: Cross multiply
1,795,945.19x = 2,478,462.18 × 1,021,556.12 - Step 4: Simplify right side
1,795,945.19x = 2,531,888,203,059.76 - Step 5: Solve for x
x = 2,531,888,203,059.76/1,795,945.19 - Step 6: Final answer
x = 1,409,780.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.