Finding the Fourth Proportional to 384,466.36, 530,608.36 and 319,821.28
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Solution
The fourth proportional to 384,466.36, 530,608.36 and 319,821.28 is: 441,390.62
Step by Step Solution
- Step 1: Write the proportion equation
384,466.36 : 530,608.36 = 319,821.28 : x - Step 2: Convert to fraction form
384,466.36/530,608.36 = 319,821.28/x - Step 3: Cross multiply
384,466.36x = 530,608.36 × 319,821.28 - Step 4: Simplify right side
384,466.36x = 169,699,844,873.90 - Step 5: Solve for x
x = 169,699,844,873.90/384,466.36 - Step 6: Final answer
x = 441,390.62
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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.