Finding the Fourth Proportional to 741,742.60, 1,112,322.74 and 261,867.98
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Solution
The fourth proportional to 741,742.60, 1,112,322.74 and 261,867.98 is: 392,699.18
Step by Step Solution
- Step 1: Write the proportion equation
741,742.60 : 1,112,322.74 = 261,867.98 : x - Step 2: Convert to fraction form
741,742.60/1,112,322.74 = 261,867.98/x - Step 3: Cross multiply
741,742.60x = 1,112,322.74 × 261,867.98 - Step 4: Simplify right side
741,742.60x = 291,281,709,031.87 - Step 5: Solve for x
x = 291,281,709,031.87/741,742.60 - Step 6: Final answer
x = 392,699.18
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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.