Finding the Fourth Proportional to 2,789,324.80, 4,183,987.20 and 767,564.80
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Solution
The fourth proportional to 2,789,324.80, 4,183,987.20 and 767,564.80 is: 1,151,347.20
Step by Step Solution
- Step 1: Write the proportion equation
2,789,324.80 : 4,183,987.20 = 767,564.80 : x - Step 2: Convert to fraction form
2,789,324.80/4,183,987.20 = 767,564.80/x - Step 3: Cross multiply
2,789,324.80x = 4,183,987.20 × 767,564.80 - Step 4: Simplify right side
2,789,324.80x = 3,211,481,298,370.56 - Step 5: Solve for x
x = 3,211,481,298,370.56/2,789,324.80 - Step 6: Final answer
x = 1,151,347.20
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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.