Finding the Fourth Proportional to 1,970,623.64, 2,719,459.41 and 1,065,205.64
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Solution
The fourth proportional to 1,970,623.64, 2,719,459.41 and 1,065,205.64 is: 1,469,983.12
Step by Step Solution
- Step 1: Write the proportion equation
1,970,623.64 : 2,719,459.41 = 1,065,205.64 : x - Step 2: Convert to fraction form
1,970,623.64/2,719,459.41 = 1,065,205.64/x - Step 3: Cross multiply
1,970,623.64x = 2,719,459.41 × 1,065,205.64 - Step 4: Simplify right side
1,970,623.64x = 2,896,783,487,685.78 - Step 5: Solve for x
x = 2,896,783,487,685.78/1,970,623.64 - Step 6: Final answer
x = 1,469,983.12
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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.