Finding the Fourth Proportional to 3,111,764.98, 4,294,129.58 and 1,716,381.90
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Solution
The fourth proportional to 3,111,764.98, 4,294,129.58 and 1,716,381.90 is: 2,368,548.49
Step by Step Solution
- Step 1: Write the proportion equation
3,111,764.98 : 4,294,129.58 = 1,716,381.90 : x - Step 2: Convert to fraction form
3,111,764.98/4,294,129.58 = 1,716,381.90/x - Step 3: Cross multiply
3,111,764.98x = 4,294,129.58 × 1,716,381.90 - Step 4: Simplify right side
3,111,764.98x = 7,370,366,257,314.05 - Step 5: Solve for x
x = 7,370,366,257,314.05/3,111,764.98 - Step 6: Final answer
x = 2,368,548.49
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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.