Finding the Fourth Proportional to 1,268,235.12, 1,900,358.41 and 980,748.51
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Solution
The fourth proportional to 1,268,235.12, 1,900,358.41 and 980,748.51 is: 1,469,580.55
Step by Step Solution
- Step 1: Write the proportion equation
1,268,235.12 : 1,900,358.41 = 980,748.51 : x - Step 2: Convert to fraction form
1,268,235.12/1,900,358.41 = 980,748.51/x - Step 3: Cross multiply
1,268,235.12x = 1,900,358.41 × 980,748.51 - Step 4: Simplify right side
1,268,235.12x = 1,863,773,669,571.68 - Step 5: Solve for x
x = 1,863,773,669,571.68/1,268,235.12 - Step 6: Final answer
x = 1,469,580.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.