Finding the Fourth Proportional to 890,356.13, 1,335,524.34 and 216,438.08
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Solution
The fourth proportional to 890,356.13, 1,335,524.34 and 216,438.08 is: 324,654.72
Step by Step Solution
- Step 1: Write the proportion equation
890,356.13 : 1,335,524.34 = 216,438.08 : x - Step 2: Convert to fraction form
890,356.13/1,335,524.34 = 216,438.08/x - Step 3: Cross multiply
890,356.13x = 1,335,524.34 × 216,438.08 - Step 4: Simplify right side
890,356.13x = 289,058,316,859.42 - Step 5: Solve for x
x = 289,058,316,859.42/890,356.13 - Step 6: Final answer
x = 324,654.72
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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.