Finding the Fourth Proportional to 763,631.12, 1,053,749.46 and 441,362.09
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Solution
The fourth proportional to 763,631.12, 1,053,749.46 and 441,362.09 is: 609,044.15
Step by Step Solution
- Step 1: Write the proportion equation
763,631.12 : 1,053,749.46 = 441,362.09 : x - Step 2: Convert to fraction form
763,631.12/1,053,749.46 = 441,362.09/x - Step 3: Cross multiply
763,631.12x = 1,053,749.46 × 441,362.09 - Step 4: Simplify right side
763,631.12x = 465,085,064,001.97 - Step 5: Solve for x
x = 465,085,064,001.97/763,631.12 - Step 6: Final answer
x = 609,044.15
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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.