Finding the Fourth Proportional to 830,454.70, 1,245,682.05 and 788,982.70
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Solution
The fourth proportional to 830,454.70, 1,245,682.05 and 788,982.70 is: 1,183,474.05
Step by Step Solution
- Step 1: Write the proportion equation
830,454.70 : 1,245,682.05 = 788,982.70 : x - Step 2: Convert to fraction form
830,454.70/1,245,682.05 = 788,982.70/x - Step 3: Cross multiply
830,454.70x = 1,245,682.05 × 788,982.70 - Step 4: Simplify right side
830,454.70x = 982,821,587,150.54 - Step 5: Solve for x
x = 982,821,587,150.54/830,454.70 - Step 6: Final answer
x = 1,183,474.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.