Finding the Fourth Proportional to 1,992,693.86, 2,749,448.07 and 1,477,638.95
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Solution
The fourth proportional to 1,992,693.86, 2,749,448.07 and 1,477,638.95 is: 2,038,793.63
Step by Step Solution
- Step 1: Write the proportion equation
1,992,693.86 : 2,749,448.07 = 1,477,638.95 : x - Step 2: Convert to fraction form
1,992,693.86/2,749,448.07 = 1,477,638.95/x - Step 3: Cross multiply
1,992,693.86x = 2,749,448.07 × 1,477,638.95 - Step 4: Simplify right side
1,992,693.86x = 4,062,691,545,487.09 - Step 5: Solve for x
x = 4,062,691,545,487.09/1,992,693.86 - Step 6: Final answer
x = 2,038,793.63
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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.