Finding the Fourth Proportional to 424,868.36, 586,325.79 and 231,281.62
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Solution
The fourth proportional to 424,868.36, 586,325.79 and 231,281.62 is: 319,172.69
Step by Step Solution
- Step 1: Write the proportion equation
424,868.36 : 586,325.79 = 231,281.62 : x - Step 2: Convert to fraction form
424,868.36/586,325.79 = 231,281.62/x - Step 3: Cross multiply
424,868.36x = 586,325.79 × 231,281.62 - Step 4: Simplify right side
424,868.36x = 135,606,378,558.98 - Step 5: Solve for x
x = 135,606,378,558.98/424,868.36 - Step 6: Final answer
x = 319,172.69
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1.5x scale
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.