Finding the Fourth Proportional to 2,861,778.90, 3,948,393.69 and 1,715,440.98
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Solution
The fourth proportional to 2,861,778.90, 3,948,393.69 and 1,715,440.98 is: 2,366,792.33
Step by Step Solution
- Step 1: Write the proportion equation
2,861,778.90 : 3,948,393.69 = 1,715,440.98 : x - Step 2: Convert to fraction form
2,861,778.90/3,948,393.69 = 1,715,440.98/x - Step 3: Cross multiply
2,861,778.90x = 3,948,393.69 × 1,715,440.98 - Step 4: Simplify right side
2,861,778.90x = 6,773,236,340,999.42 - Step 5: Solve for x
x = 6,773,236,340,999.42/2,861,778.90 - Step 6: Final answer
x = 2,366,792.33
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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.