Finding the Fourth Proportional to 712,819.44, 984,988.44 and 678,269.68
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Solution
The fourth proportional to 712,819.44, 984,988.44 and 678,269.68 is: 937,246.88
Step by Step Solution
- Step 1: Write the proportion equation
712,819.44 : 984,988.44 = 678,269.68 : x - Step 2: Convert to fraction form
712,819.44/984,988.44 = 678,269.68/x - Step 3: Cross multiply
712,819.44x = 984,988.44 × 678,269.68 - Step 4: Simplify right side
712,819.44x = 668,087,794,002.50 - Step 5: Solve for x
x = 668,087,794,002.50/712,819.44 - Step 6: Final answer
x = 937,246.88
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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.