Finding the Fourth Proportional to 712,606.99, 1,068,910.21 and 286,142.68
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Solution
The fourth proportional to 712,606.99, 1,068,910.21 and 286,142.68 is: 429,213.92
Step by Step Solution
- Step 1: Write the proportion equation
712,606.99 : 1,068,910.21 = 286,142.68 : x - Step 2: Convert to fraction form
712,606.99/1,068,910.21 = 286,142.68/x - Step 3: Cross multiply
712,606.99x = 1,068,910.21 × 286,142.68 - Step 4: Simplify right side
712,606.99x = 305,860,836,466.52 - Step 5: Solve for x
x = 305,860,836,466.52/712,606.99 - Step 6: Final answer
x = 429,213.92
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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.