Finding the Fourth Proportional to 4,191,015.21, 6,286,347.86 and 1,199,199.21
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Solution
The fourth proportional to 4,191,015.21, 6,286,347.86 and 1,199,199.21 is: 1,798,748.75
Step by Step Solution
- Step 1: Write the proportion equation
4,191,015.21 : 6,286,347.86 = 1,199,199.21 : x - Step 2: Convert to fraction form
4,191,015.21/6,286,347.86 = 1,199,199.21/x - Step 3: Cross multiply
4,191,015.21x = 6,286,347.86 × 1,199,199.21 - Step 4: Simplify right side
4,191,015.21x = 7,538,583,381,501.20 - Step 5: Solve for x
x = 7,538,583,381,501.20/4,191,015.21 - Step 6: Final answer
x = 1,798,748.75
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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.