Finding the Fourth Proportional to 1,289,867.99, 1,935,579.60 and 449,010.23
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Solution
The fourth proportional to 1,289,867.99, 1,935,579.60 and 449,010.23 is: 673,786.03
Step by Step Solution
- Step 1: Write the proportion equation
1,289,867.99 : 1,935,579.60 = 449,010.23 : x - Step 2: Convert to fraction form
1,289,867.99/1,935,579.60 = 449,010.23/x - Step 3: Cross multiply
1,289,867.99x = 1,935,579.60 × 449,010.23 - Step 4: Simplify right side
1,289,867.99x = 869,095,031,701.41 - Step 5: Solve for x
x = 869,095,031,701.41/1,289,867.99 - Step 6: Final answer
x = 673,786.03
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1.5x scale
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.