Finding the Fourth Proportional to 957,200.85, 1,320,920.06 and 521,621.99
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Solution
The fourth proportional to 957,200.85, 1,320,920.06 and 521,621.99 is: 719,829.01
Step by Step Solution
- Step 1: Write the proportion equation
957,200.85 : 1,320,920.06 = 521,621.99 : x - Step 2: Convert to fraction form
957,200.85/1,320,920.06 = 521,621.99/x - Step 3: Cross multiply
957,200.85x = 1,320,920.06 × 521,621.99 - Step 4: Simplify right side
957,200.85x = 689,020,941,115.41 - Step 5: Solve for x
x = 689,020,941,115.41/957,200.85 - Step 6: Final answer
x = 719,829.01
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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.