Finding the Fourth Proportional to 2,819,177.09, 4,228,765.65 and 689,235.92
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Solution
The fourth proportional to 2,819,177.09, 4,228,765.65 and 689,235.92 is: 1,033,853.88
Step by Step Solution
- Step 1: Write the proportion equation
2,819,177.09 : 4,228,765.65 = 689,235.92 : x - Step 2: Convert to fraction form
2,819,177.09/4,228,765.65 = 689,235.92/x - Step 3: Cross multiply
2,819,177.09x = 4,228,765.65 × 689,235.92 - Step 4: Simplify right side
2,819,177.09x = 2,914,617,183,242.15 - Step 5: Solve for x
x = 2,914,617,183,242.15/2,819,177.09 - Step 6: Final answer
x = 1,033,853.88
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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.