Finding the Fourth Proportional to 3,801,913.79, 5,246,440.38 and 2,170,256.27
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Solution
The fourth proportional to 3,801,913.79, 5,246,440.38 and 2,170,256.27 is: 2,994,839.11
Step by Step Solution
- Step 1: Write the proportion equation
3,801,913.79 : 5,246,440.38 = 2,170,256.27 : x - Step 2: Convert to fraction form
3,801,913.79/5,246,440.38 = 2,170,256.27/x - Step 3: Cross multiply
3,801,913.79x = 5,246,440.38 × 2,170,256.27 - Step 4: Simplify right side
3,801,913.79x = 11,386,120,103,643.98 - Step 5: Solve for x
x = 11,386,120,103,643.98/3,801,913.79 - Step 6: Final answer
x = 2,994,839.11
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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.