Finding the Fourth Proportional to 1,621,655.64, 2,238,107.36 and 933,313.59
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Solution
The fourth proportional to 1,621,655.64, 2,238,107.36 and 933,313.59 is: 1,288,100.85
Step by Step Solution
- Step 1: Write the proportion equation
1,621,655.64 : 2,238,107.36 = 933,313.59 : x - Step 2: Convert to fraction form
1,621,655.64/2,238,107.36 = 933,313.59/x - Step 3: Cross multiply
1,621,655.64x = 2,238,107.36 × 933,313.59 - Step 4: Simplify right side
1,621,655.64x = 2,088,856,010,300.45 - Step 5: Solve for x
x = 2,088,856,010,300.45/1,621,655.64 - Step 6: Final answer
x = 1,288,100.85
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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.