Finding the Fourth Proportional to 4,115,155.95, 5,678,853.71 and 2,279,608.74
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Solution
The fourth proportional to 4,115,155.95, 5,678,853.71 and 2,279,608.74 is: 3,145,825.99
Step by Step Solution
- Step 1: Write the proportion equation
4,115,155.95 : 5,678,853.71 = 2,279,608.74 : x - Step 2: Convert to fraction form
4,115,155.95/5,678,853.71 = 2,279,608.74/x - Step 3: Cross multiply
4,115,155.95x = 5,678,853.71 × 2,279,608.74 - Step 4: Simplify right side
4,115,155.95x = 12,945,564,539,099.38 - Step 5: Solve for x
x = 12,945,564,539,099.38/4,115,155.95 - Step 6: Final answer
x = 3,145,825.99
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1.5x scale
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.