Finding the Fourth Proportional to 1,138,260.09, 1,570,819.47 and 622,035.75
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Solution
The fourth proportional to 1,138,260.09, 1,570,819.47 and 622,035.75 is: 858,420.56
Step by Step Solution
- Step 1: Write the proportion equation
1,138,260.09 : 1,570,819.47 = 622,035.75 : x - Step 2: Convert to fraction form
1,138,260.09/1,570,819.47 = 622,035.75/x - Step 3: Cross multiply
1,138,260.09x = 1,570,819.47 × 622,035.75 - Step 4: Simplify right side
1,138,260.09x = 977,105,870,693.99 - Step 5: Solve for x
x = 977,105,870,693.99/1,138,260.09 - Step 6: Final answer
x = 858,420.56
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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.