Finding the Fourth Proportional to 2,639,669.41, 3,642,743.73 and 1,432,445.41
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Solution
The fourth proportional to 2,639,669.41, 3,642,743.73 and 1,432,445.41 is: 1,976,774.64
Step by Step Solution
- Step 1: Write the proportion equation
2,639,669.41 : 3,642,743.73 = 1,432,445.41 : x - Step 2: Convert to fraction form
2,639,669.41/3,642,743.73 = 1,432,445.41/x - Step 3: Cross multiply
2,639,669.41x = 3,642,743.73 × 1,432,445.41 - Step 4: Simplify right side
2,639,669.41x = 5,218,031,535,844.78 - Step 5: Solve for x
x = 5,218,031,535,844.78/2,639,669.41 - Step 6: Final answer
x = 1,976,774.64
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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.