Finding the Fourth Proportional to 1,997,660.99, 2,997,245.99 and 1,199,497.11
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Solution
The fourth proportional to 1,997,660.99, 2,997,245.99 and 1,199,497.11 is: 1,799,698.71
Step by Step Solution
- Step 1: Write the proportion equation
1,997,660.99 : 2,997,245.99 = 1,199,497.11 : x - Step 2: Convert to fraction form
1,997,660.99/2,997,245.99 = 1,199,497.11/x - Step 3: Cross multiply
1,997,660.99x = 2,997,245.99 × 1,199,497.11 - Step 4: Simplify right side
1,997,660.99x = 3,595,187,896,966.60 - Step 5: Solve for x
x = 3,595,187,896,966.60/1,997,660.99 - Step 6: Final answer
x = 1,799,698.71
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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.