Finding the Fourth Proportional to 1,455,592.80, 2,183,680.80 and 1,220,563.20
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Solution
The fourth proportional to 1,455,592.80, 2,183,680.80 and 1,220,563.20 is: 1,831,089.32
Step by Step Solution
- Step 1: Write the proportion equation
1,455,592.80 : 2,183,680.80 = 1,220,563.20 : x - Step 2: Convert to fraction form
1,455,592.80/2,183,680.80 = 1,220,563.20/x - Step 3: Cross multiply
1,455,592.80x = 2,183,680.80 × 1,220,563.20 - Step 4: Simplify right side
1,455,592.80x = 2,665,320,425,026.56 - Step 5: Solve for x
x = 2,665,320,425,026.56/1,455,592.80 - Step 6: Final answer
x = 1,831,089.32
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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.