Finding the Fourth Proportional to 1,076,774.48, 1,485,930.12 and 624,107.60
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Solution
The fourth proportional to 1,076,774.48, 1,485,930.12 and 624,107.60 is: 861,257.67
Step by Step Solution
- Step 1: Write the proportion equation
1,076,774.48 : 1,485,930.12 = 624,107.60 : x - Step 2: Convert to fraction form
1,076,774.48/1,485,930.12 = 624,107.60/x - Step 3: Cross multiply
1,076,774.48x = 1,485,930.12 × 624,107.60 - Step 4: Simplify right side
1,076,774.48x = 927,380,280,960.91 - Step 5: Solve for x
x = 927,380,280,960.91/1,076,774.48 - Step 6: Final answer
x = 861,257.67
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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.