Finding the Fourth Proportional to 2,263,778.75, 3,391,682.13 and 2,128,925.58
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Solution
The fourth proportional to 2,263,778.75, 3,391,682.13 and 2,128,925.58 is: 3,189,639.83
Step by Step Solution
- Step 1: Write the proportion equation
2,263,778.75 : 3,391,682.13 = 2,128,925.58 : x - Step 2: Convert to fraction form
2,263,778.75/3,391,682.13 = 2,128,925.58/x - Step 3: Cross multiply
2,263,778.75x = 3,391,682.13 × 2,128,925.58 - Step 4: Simplify right side
2,263,778.75x = 7,220,638,845,785.89 - Step 5: Solve for x
x = 7,220,638,845,785.89/2,263,778.75 - Step 6: Final answer
x = 3,189,639.83
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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.