Finding the Fourth Proportional to 1,138,818.01, 1,571,519.86 and 622,562.08
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Solution
The fourth proportional to 1,138,818.01, 1,571,519.86 and 622,562.08 is: 859,108.89
Step by Step Solution
- Step 1: Write the proportion equation
1,138,818.01 : 1,571,519.86 = 622,562.08 : x - Step 2: Convert to fraction form
1,138,818.01/1,571,519.86 = 622,562.08/x - Step 3: Cross multiply
1,138,818.01x = 1,571,519.86 × 622,562.08 - Step 4: Simplify right side
1,138,818.01x = 978,368,672,802.91 - Step 5: Solve for x
x = 978,368,672,802.91/1,138,818.01 - Step 6: Final answer
x = 859,108.89
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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.