Finding the Fourth Proportional to 1,029,235.20, 1,419,505.66 and 724,321.84
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Solution
The fourth proportional to 1,029,235.20, 1,419,505.66 and 724,321.84 is: 998,973.75
Step by Step Solution
- Step 1: Write the proportion equation
1,029,235.20 : 1,419,505.66 = 724,321.84 : x - Step 2: Convert to fraction form
1,029,235.20/1,419,505.66 = 724,321.84/x - Step 3: Cross multiply
1,029,235.20x = 1,419,505.66 × 724,321.84 - Step 4: Simplify right side
1,029,235.20x = 1,028,178,951,541.61 - Step 5: Solve for x
x = 1,028,178,951,541.61/1,029,235.20 - Step 6: Final answer
x = 998,973.75
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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.