Finding the Fourth Proportional to 550,675.81, 759,920.66 and 318,102.94
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Solution
The fourth proportional to 550,675.81, 759,920.66 and 318,102.94 is: 438,975.15
Step by Step Solution
- Step 1: Write the proportion equation
550,675.81 : 759,920.66 = 318,102.94 : x - Step 2: Convert to fraction form
550,675.81/759,920.66 = 318,102.94/x - Step 3: Cross multiply
550,675.81x = 759,920.66 × 318,102.94 - Step 4: Simplify right side
550,675.81x = 241,732,993,815.31 - Step 5: Solve for x
x = 241,732,993,815.31/550,675.81 - Step 6: Final answer
x = 438,975.15
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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.