Finding the Fourth Proportional to 991,771.44, 1,369,303.68 and 761,919.36
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Solution
The fourth proportional to 991,771.44, 1,369,303.68 and 761,919.36 is: 1,051,955.06
Step by Step Solution
- Step 1: Write the proportion equation
991,771.44 : 1,369,303.68 = 761,919.36 : x - Step 2: Convert to fraction form
991,771.44/1,369,303.68 = 761,919.36/x - Step 3: Cross multiply
991,771.44x = 1,369,303.68 × 761,919.36 - Step 4: Simplify right side
991,771.44x = 1,043,298,983,511.24 - Step 5: Solve for x
x = 1,043,298,983,511.24/991,771.44 - Step 6: Final answer
x = 1,051,955.06
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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.