Finding the Fourth Proportional to 432,920.30, 649,380.45 and 291,202.70
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Solution
The fourth proportional to 432,920.30, 649,380.45 and 291,202.70 is: 436,804.05
Step by Step Solution
- Step 1: Write the proportion equation
432,920.30 : 649,380.45 = 291,202.70 : x - Step 2: Convert to fraction form
432,920.30/649,380.45 = 291,202.70/x - Step 3: Cross multiply
432,920.30x = 649,380.45 × 291,202.70 - Step 4: Simplify right side
432,920.30x = 189,101,340,367.22 - Step 5: Solve for x
x = 189,101,340,367.22/432,920.30 - Step 6: Final answer
x = 436,804.05
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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.