Finding the Fourth Proportional to 1,455,137.70, 2,183,690.70 and 815,440.20
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Solution
The fourth proportional to 1,455,137.70, 2,183,690.70 and 815,440.20 is: 1,223,711.80
Step by Step Solution
- Step 1: Write the proportion equation
1,455,137.70 : 2,183,690.70 = 815,440.20 : x - Step 2: Convert to fraction form
1,455,137.70/2,183,690.70 = 815,440.20/x - Step 3: Cross multiply
1,455,137.70x = 2,183,690.70 × 815,440.20 - Step 4: Simplify right side
1,455,137.70x = 1,780,669,181,146.14 - Step 5: Solve for x
x = 1,780,669,181,146.14/1,455,137.70 - Step 6: Final answer
x = 1,223,711.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.