Finding the Fourth Proportional to 695,195.20, 1,043,138.40 and 274,484.80
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Solution
The fourth proportional to 695,195.20, 1,043,138.40 and 274,484.80 is: 411,863.65
Step by Step Solution
- Step 1: Write the proportion equation
695,195.20 : 1,043,138.40 = 274,484.80 : x - Step 2: Convert to fraction form
695,195.20/1,043,138.40 = 274,484.80/x - Step 3: Cross multiply
695,195.20x = 1,043,138.40 × 274,484.80 - Step 4: Simplify right side
695,195.20x = 286,325,635,096.32 - Step 5: Solve for x
x = 286,325,635,096.32/695,195.20 - Step 6: Final answer
x = 411,863.65
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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.