Finding the Fourth Proportional to 1,009,769.17, 1,393,481.37 and 557,060.17
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Solution
The fourth proportional to 1,009,769.17, 1,393,481.37 and 557,060.17 is: 768,742.99
Step by Step Solution
- Step 1: Write the proportion equation
1,009,769.17 : 1,393,481.37 = 557,060.17 : x - Step 2: Convert to fraction form
1,009,769.17/1,393,481.37 = 557,060.17/x - Step 3: Cross multiply
1,009,769.17x = 1,393,481.37 × 557,060.17 - Step 4: Simplify right side
1,009,769.17x = 776,252,968,864.03 - Step 5: Solve for x
x = 776,252,968,864.03/1,009,769.17 - Step 6: Final answer
x = 768,742.99
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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.