Finding the Fourth Proportional to 858,410.10, 1,288,198.35 and 479,330.10
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Solution
The fourth proportional to 858,410.10, 1,288,198.35 and 479,330.10 is: 719,320.80
Step by Step Solution
- Step 1: Write the proportion equation
858,410.10 : 1,288,198.35 = 479,330.10 : x - Step 2: Convert to fraction form
858,410.10/1,288,198.35 = 479,330.10/x - Step 3: Cross multiply
858,410.10x = 1,288,198.35 × 479,330.10 - Step 4: Simplify right side
858,410.10x = 617,472,243,925.34 - Step 5: Solve for x
x = 617,472,243,925.34/858,410.10 - Step 6: Final answer
x = 719,320.80
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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.