Finding the Fourth Proportional to 763,626.12, 1,053,742.56 and 441,357.09
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Solution
The fourth proportional to 763,626.12, 1,053,742.56 and 441,357.09 is: 609,037.25
Step by Step Solution
- Step 1: Write the proportion equation
763,626.12 : 1,053,742.56 = 441,357.09 : x - Step 2: Convert to fraction form
763,626.12/1,053,742.56 = 441,357.09/x - Step 3: Cross multiply
763,626.12x = 1,053,742.56 × 441,357.09 - Step 4: Simplify right side
763,626.12x = 465,076,749,890.75 - Step 5: Solve for x
x = 465,076,749,890.75/763,626.12 - Step 6: Final answer
x = 609,037.25
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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.