Finding the Fourth Proportional to 788,806.20, 1,183,209.30 and 490,207.80
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Solution
The fourth proportional to 788,806.20, 1,183,209.30 and 490,207.80 is: 735,311.70
Step by Step Solution
- Step 1: Write the proportion equation
788,806.20 : 1,183,209.30 = 490,207.80 : x - Step 2: Convert to fraction form
788,806.20/1,183,209.30 = 490,207.80/x - Step 3: Cross multiply
788,806.20x = 1,183,209.30 × 490,207.80 - Step 4: Simplify right side
788,806.20x = 580,018,427,892.54 - Step 5: Solve for x
x = 580,018,427,892.54/788,806.20 - Step 6: Final answer
x = 735,311.70
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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.