Finding the Fourth Proportional to 494,991.36, 742,368.09 and 228,495.90
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Solution
The fourth proportional to 494,991.36, 742,368.09 and 228,495.90 is: 342,688.94
Step by Step Solution
- Step 1: Write the proportion equation
494,991.36 : 742,368.09 = 228,495.90 : x - Step 2: Convert to fraction form
494,991.36/742,368.09 = 228,495.90/x - Step 3: Cross multiply
494,991.36x = 742,368.09 × 228,495.90 - Step 4: Simplify right side
494,991.36x = 169,628,064,855.83 - Step 5: Solve for x
x = 169,628,064,855.83/494,991.36 - Step 6: Final answer
x = 342,688.94
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1.5x scale
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.