Finding the Fourth Proportional to 3,248,780.88, 4,483,370.70 and 1,778,664.90
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Solution
The fourth proportional to 3,248,780.88, 4,483,370.70 and 1,778,664.90 is: 2,454,586.63
Step by Step Solution
- Step 1: Write the proportion equation
3,248,780.88 : 4,483,370.70 = 1,778,664.90 : x - Step 2: Convert to fraction form
3,248,780.88/4,483,370.70 = 1,778,664.90/x - Step 3: Cross multiply
3,248,780.88x = 4,483,370.70 × 1,778,664.90 - Step 4: Simplify right side
3,248,780.88x = 7,974,414,097,778.43 - Step 5: Solve for x
x = 7,974,414,097,778.43/3,248,780.88 - Step 6: Final answer
x = 2,454,586.63
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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.