Finding the Fourth Proportional to 874,437.12, 1,311,690.24 and 243,406.08
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Solution
The fourth proportional to 874,437.12, 1,311,690.24 and 243,406.08 is: 365,118.74
Step by Step Solution
- Step 1: Write the proportion equation
874,437.12 : 1,311,690.24 = 243,406.08 : x - Step 2: Convert to fraction form
874,437.12/1,311,690.24 = 243,406.08/x - Step 3: Cross multiply
874,437.12x = 1,311,690.24 × 243,406.08 - Step 4: Simplify right side
874,437.12x = 319,273,379,492.66 - Step 5: Solve for x
x = 319,273,379,492.66/874,437.12 - Step 6: Final answer
x = 365,118.74
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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.