Finding the Fourth Proportional to 926,784, 1,280,011.68 and 624,453.12
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Solution
The fourth proportional to 926,784, 1,280,011.68 and 624,453.12 is: 862,452.62
Step by Step Solution
- Step 1: Write the proportion equation
926,784 : 1,280,011.68 = 624,453.12 : x - Step 2: Convert to fraction form
926,784/1,280,011.68 = 624,453.12/x - Step 3: Cross multiply
926,784x = 1,280,011.68 × 624,453.12 - Step 4: Simplify right side
926,784x = 799,307,287,212.44 - Step 5: Solve for x
x = 799,307,287,212.44/926,784 - Step 6: Final answer
x = 862,452.62
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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.