Finding the Fourth Proportional to 1,117,749.75, 1,542,494.85 and 608,455.95
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Solution
The fourth proportional to 1,117,749.75, 1,542,494.85 and 608,455.95 is: 839,669.32
Step by Step Solution
- Step 1: Write the proportion equation
1,117,749.75 : 1,542,494.85 = 608,455.95 : x - Step 2: Convert to fraction form
1,117,749.75/1,542,494.85 = 608,455.95/x - Step 3: Cross multiply
1,117,749.75x = 1,542,494.85 × 608,455.95 - Step 4: Simplify right side
1,117,749.75x = 938,540,169,326.86 - Step 5: Solve for x
x = 938,540,169,326.86/1,117,749.75 - Step 6: Final answer
x = 839,669.32
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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.