Finding the Fourth Proportional to 693,289.16, 956,651.11 and 406,704.68
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Solution
The fourth proportional to 693,289.16, 956,651.11 and 406,704.68 is: 561,200.88
Step by Step Solution
- Step 1: Write the proportion equation
693,289.16 : 956,651.11 = 406,704.68 : x - Step 2: Convert to fraction form
693,289.16/956,651.11 = 406,704.68/x - Step 3: Cross multiply
693,289.16x = 956,651.11 × 406,704.68 - Step 4: Simplify right side
693,289.16x = 389,074,484,939.06 - Step 5: Solve for x
x = 389,074,484,939.06/693,289.16 - Step 6: Final answer
x = 561,200.88
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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.