Finding the Fourth Proportional to 782,311.42, 1,173,282.99 and 213,557.31
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Solution
The fourth proportional to 782,311.42, 1,173,282.99 and 213,557.31 is: 320,285.70
Step by Step Solution
- Step 1: Write the proportion equation
782,311.42 : 1,173,282.99 = 213,557.31 : x - Step 2: Convert to fraction form
782,311.42/1,173,282.99 = 213,557.31/x - Step 3: Cross multiply
782,311.42x = 1,173,282.99 × 213,557.31 - Step 4: Simplify right side
782,311.42x = 250,563,159,613.58 - Step 5: Solve for x
x = 250,563,159,613.58/782,311.42 - Step 6: Final answer
x = 320,285.70
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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.