Finding the Fourth Proportional to 668,651.90, 1,003,130.84 and 289,635.74
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Solution
The fourth proportional to 668,651.90, 1,003,130.84 and 289,635.74 is: 434,519.88
Step by Step Solution
- Step 1: Write the proportion equation
668,651.90 : 1,003,130.84 = 289,635.74 : x - Step 2: Convert to fraction form
668,651.90/1,003,130.84 = 289,635.74/x - Step 3: Cross multiply
668,651.90x = 1,003,130.84 × 289,635.74 - Step 4: Simplify right side
668,651.90x = 290,542,543,160.22 - Step 5: Solve for x
x = 290,542,543,160.22/668,651.90 - Step 6: Final answer
x = 434,519.88
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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.