Finding the Fourth Proportional to 2,119,968, 2,925,555.84 and 1,215,074.88
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Solution
The fourth proportional to 2,119,968, 2,925,555.84 and 1,215,074.88 is: 1,676,803.33
Step by Step Solution
- Step 1: Write the proportion equation
2,119,968 : 2,925,555.84 = 1,215,074.88 : x - Step 2: Convert to fraction form
2,119,968/2,925,555.84 = 1,215,074.88/x - Step 3: Cross multiply
2,119,968x = 2,925,555.84 × 1,215,074.88 - Step 4: Simplify right side
2,119,968x = 3,554,769,411,221.30 - Step 5: Solve for x
x = 3,554,769,411,221.30/2,119,968 - Step 6: Final answer
x = 1,676,803.33
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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.