Finding the Fourth Proportional to 903,431.44, 1,355,351.58 and 304,376.30
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Solution
The fourth proportional to 903,431.44, 1,355,351.58 and 304,376.30 is: 456,633.32
Step by Step Solution
- Step 1: Write the proportion equation
903,431.44 : 1,355,351.58 = 304,376.30 : x - Step 2: Convert to fraction form
903,431.44/1,355,351.58 = 304,376.30/x - Step 3: Cross multiply
903,431.44x = 1,355,351.58 × 304,376.30 - Step 4: Simplify right side
903,431.44x = 412,536,899,119.55 - Step 5: Solve for x
x = 412,536,899,119.55/903,431.44 - Step 6: Final answer
x = 456,633.32
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1.5x scale
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.