Finding the Fourth Proportional to 2,130,608.16, 2,940,221.75 and 1,163,739.11
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Solution
The fourth proportional to 2,130,608.16, 2,940,221.75 and 1,163,739.11 is: 1,605,950.40
Step by Step Solution
- Step 1: Write the proportion equation
2,130,608.16 : 2,940,221.75 = 1,163,739.11 : x - Step 2: Convert to fraction form
2,130,608.16/2,940,221.75 = 1,163,739.11/x - Step 3: Cross multiply
2,130,608.16x = 2,940,221.75 × 1,163,739.11 - Step 4: Simplify right side
2,130,608.16x = 3,421,651,022,027.84 - Step 5: Solve for x
x = 3,421,651,022,027.84/2,130,608.16 - Step 6: Final answer
x = 1,605,950.40
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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.