Finding the Fourth Proportional to 1,915,048.08, 2,642,765.70 and 1,055,622.69
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Solution
The fourth proportional to 1,915,048.08, 2,642,765.70 and 1,055,622.69 is: 1,456,758.95
Step by Step Solution
- Step 1: Write the proportion equation
1,915,048.08 : 2,642,765.70 = 1,055,622.69 : x - Step 2: Convert to fraction form
1,915,048.08/2,642,765.70 = 1,055,622.69/x - Step 3: Cross multiply
1,915,048.08x = 2,642,765.70 × 1,055,622.69 - Step 4: Simplify right side
1,915,048.08x = 2,789,763,437,273.73 - Step 5: Solve for x
x = 2,789,763,437,273.73/1,915,048.08 - Step 6: Final answer
x = 1,456,758.95
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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.