Finding the Fourth Proportional to 691,771.36, 1,037,972.30 and 355,048.44
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Solution
The fourth proportional to 691,771.36, 1,037,972.30 and 355,048.44 is: 532,734.47
Step by Step Solution
- Step 1: Write the proportion equation
691,771.36 : 1,037,972.30 = 355,048.44 : x - Step 2: Convert to fraction form
691,771.36/1,037,972.30 = 355,048.44/x - Step 3: Cross multiply
691,771.36x = 1,037,972.30 × 355,048.44 - Step 4: Simplify right side
691,771.36x = 368,530,445,878.21 - Step 5: Solve for x
x = 368,530,445,878.21/691,771.36 - Step 6: Final answer
x = 532,734.47
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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.