Finding the Fourth Proportional to 1,317,221.46, 1,817,754.21 and 713,608.02
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Solution
The fourth proportional to 1,317,221.46, 1,817,754.21 and 713,608.02 is: 984,772.89
Step by Step Solution
- Step 1: Write the proportion equation
1,317,221.46 : 1,817,754.21 = 713,608.02 : x - Step 2: Convert to fraction form
1,317,221.46/1,817,754.21 = 713,608.02/x - Step 3: Cross multiply
1,317,221.46x = 1,817,754.21 × 713,608.02 - Step 4: Simplify right side
1,317,221.46x = 1,297,163,982,644.76 - Step 5: Solve for x
x = 1,297,163,982,644.76/1,317,221.46 - Step 6: Final answer
x = 984,772.89
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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.