Finding the Fourth Proportional to 879,267.21, 1,318,211.80 and 347,186.51
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Solution
The fourth proportional to 879,267.21, 1,318,211.80 and 347,186.51 is: 520,507.70
Step by Step Solution
- Step 1: Write the proportion equation
879,267.21 : 1,318,211.80 = 347,186.51 : x - Step 2: Convert to fraction form
879,267.21/1,318,211.80 = 347,186.51/x - Step 3: Cross multiply
879,267.21x = 1,318,211.80 × 347,186.51 - Step 4: Simplify right side
879,267.21x = 457,665,351,767.09 - Step 5: Solve for x
x = 457,665,351,767.09/879,267.21 - Step 6: Final answer
x = 520,507.70
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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.