Finding the Fourth Proportional to 418,905.18, 628,263.12 and 119,379.33
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Solution
The fourth proportional to 418,905.18, 628,263.12 and 119,379.33 is: 179,042.02
Step by Step Solution
- Step 1: Write the proportion equation
418,905.18 : 628,263.12 = 119,379.33 : x - Step 2: Convert to fraction form
418,905.18/628,263.12 = 119,379.33/x - Step 3: Cross multiply
418,905.18x = 628,263.12 × 119,379.33 - Step 4: Simplify right side
418,905.18x = 75,001,630,329.31 - Step 5: Solve for x
x = 75,001,630,329.31/418,905.18 - Step 6: Final answer
x = 179,042.02
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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.