Finding the Fourth Proportional to 3,190,639.64, 4,403,096.55 and 1,740,366.23
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Solution
The fourth proportional to 3,190,639.64, 4,403,096.55 and 1,740,366.23 is: 2,401,712.95
Step by Step Solution
- Step 1: Write the proportion equation
3,190,639.64 : 4,403,096.55 = 1,740,366.23 : x - Step 2: Convert to fraction form
3,190,639.64/4,403,096.55 = 1,740,366.23/x - Step 3: Cross multiply
3,190,639.64x = 4,403,096.55 × 1,740,366.23 - Step 4: Simplify right side
3,190,639.64x = 7,663,000,521,034.02 - Step 5: Solve for x
x = 7,663,000,521,034.02/3,190,639.64 - Step 6: Final answer
x = 2,401,712.95
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1.5x scale
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.