Finding the Fourth Proportional to 1,617,815.12, 2,232,631.62 and 892,709.53
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Solution
The fourth proportional to 1,617,815.12, 2,232,631.62 and 892,709.53 is: 1,231,964.95
Step by Step Solution
- Step 1: Write the proportion equation
1,617,815.12 : 2,232,631.62 = 892,709.53 : x - Step 2: Convert to fraction form
1,617,815.12/2,232,631.62 = 892,709.53/x - Step 3: Cross multiply
1,617,815.12x = 2,232,631.62 × 892,709.53 - Step 4: Simplify right side
1,617,815.12x = 1,993,091,518,571.76 - Step 5: Solve for x
x = 1,993,091,518,571.76/1,617,815.12 - Step 6: Final answer
x = 1,231,964.95
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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.